paper 2

A.M.E

PAPER – II (OCT – 1998)

1. Titanium is heat treated for following purposea) Thermal hardening to improve strengthb) Annealing offer hot working and cold working to provide maximum ductility for subsequent cold workingc) Both a & bd) None

2. The normal soldering technique of A1 isa) Similar to that of the other materialb) Differ to control the expansion and contraction of metalc) Differ to the extent a low heat input is requiredd) Both b & c is correct

3. Flux is used in welding of N-alloy is fora) better penetrationb) fid to oxidationc) for better fusiond) slow down the flow of molten metal

4. Flux used in silver soldering isa) Zinc chlorideb) Orthophaspheric acidc) Sulphuric acidd) All are correct

5. Rust is steel is removed bya) Wire brushb) Emery paperc) Controlled sand blastingd) All are correct

6. Barcol tester is used ona) harder material b) softer materialc) all type of materiald) none

7. I-beam is produced bya) Extruding b) Forgingc) Cstingd) Hot rolling

8. Which one is stable wrought alloya) pistonb) cylinder headc) crankshaftd) alclad

9. The load per unit square inch at which material breaks a) ultimate tensile strengthb) yield point

10. Ultrasonic testing is used to checka) fatigue crackb) disbondc) weld and inclusion on castd) all are correct

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11.Which statement is correct regarding sensitivity of the x-raysa) The darkness of radiograph does not depend on the radiation penetrating in the cylinderb) Thicker the specimen, lighter the imagec) Thicker the specimen, darker the image

12.Muntz metal is useda) to make oil and hydraulic fillingb) to make nut and bolts for used in salty atmospherec) to make nut and bolts which are not affected by fresh waterd) none

13. Most N-weldable material isa) 2 Sb) 17 Sc) 52 Sd) 53 S

14. A punch made of tool steel is heat treated to a) heat to cherry red colourb) as in (a) and dipped in sandc) heat to dazzling whited) as in (b) and heat to purple colour

15. Binary no. 11.75 digital form isa) 1011.11b) 1101.11c) 1011.10d) 1111.01

16. Figure indicatea) X-ORb) X-NORc) CMOS-ORd) X-NAND gate

17. Choose correct no used in hexadecimala) 2b) 8c) 10d) 16

18. A modern digital computer usea) Octal Nob) Hec) Binary No.d) None

19. Computer perform only the calculation a) Simpleb) Complexc) Problem which split into no. of logic stepd) None

20. High discharge tester is used to check thea) voltage of battery in normal operating conditionb) efficiency of condenserc) generator outputd) voltage of battery to find its charge condition and if recharging is required

21. Electrical power and energy is expressed in terms of a) Kilo-watt and kilo-watt hour respectively

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b) Watt and joule respectivelyc) Watt and watt-hour respectivelyd) Watt and newton

22. A 3-8 winding rotate with 1800 rpm in magnetic field having 8 poles, its frequency will be

23. A wire is connected to constant voltage supply while its length and radius is doubleda) electric field is halfb) electric field is doublec) heat is unchangedd) electric field remain same

24. Shunt motor is used ina) L/G and flap operationb) Hydraulic motorc) Gyrometerd) Both a & b

25. AC induction motor is used in place of d.c. motor a) because of less weightb) it requires less maintenancec) less expensive than dc motord) do not use brush and commutator

26. In lead acid battery, temperature correction factor is necessarya) for temperature above/below 80Fb) for temperature above /below 100Fc) for temperature above/below 120Fd) no correction is made

27. A generator relay having silver and copper contact pointa) to provide greater bearing surface and low resistantb) copper make contact and Ag break contact and increase lifec) for the purpose of sparkd) to prevent arcing

28. When a new Ni-cd battery is installed, its cell seal is opened and pour electrolyte to ensure the full charge batterya) no charge is requiredb) charge is given and boost up and (A)c) as in (b) and suddenly installed in a/c serviced) as in (b) and after two hours, check the electrolyte and installed in service

29. Purpose of flaps and slots isa) Increase or decrease the speed of a/cb) To decrease landing and take off speed, in turn reduce runway lengthc) As in (a) and reduce fuel consumptiond) As in (b) and used in high speed aircraft only

30. When angle of attack increasea) lift decreaseb) lift increase

31. Jube is classified according toa) outside diameterb) outside diameter and wall thicknessc) inside diameterd) inside diameter and wall thickness

32. If countersunk is not possible to use on thin sheet to get flush surface, then we can usea) round head rivet

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b) brazier head rivetc) counter sunk rivet with dimplingd) flat head

33. Difference between pipe-thread and screw threada) pipe thread is tapered and screw thread is straightb) pipe thread is made of iron and steel, where as screw tapered thread is made of elsewhatc) pipe has right hand thread and screw has left and threadd) pipe thread is always made by hand and screw thread is always made by machine

34. Friction lock rivet isa) can not be replaced by solid shank rivetb) can be replaced by solid shank rivetc) as in b and available in hollow, self plugging and self lockingd) as in (b) and increase the dia thrice

35. Cherry lock rivet isa) replaced by solid shank rivet (due to high fatigue strength)b) if reduced diameter used, compressive strength lessc) as in (b) and increase the diameter twiced) as in (b) and increase the diameter thrice

36. Roll pin is sued wherea) frequent removal is not requiredb) frequent removal is requiredc) as in (a) and made of brassd) as in (a) and made of spring steel and exacting formed in cylindrical shape

37. Bending radius of Al-alloy tube isa) 1”b) 12-times of its radiusc) 6-times of its radiusd) 3-times of its radius

38. Burrs around drill hole is removed bya) file b) empty paperc) oversize drilling

39. When journey from magnetic equator towards pole, the dip and a) increasedb) decreasedc) depend upon directiond) none

40. Heat energy is converted to electrical energy ina) Transducerb) Thermocouple c) Both

41. Which statement is correcta) Output is energized when all the inputs energized in AND gateb) Output is energized when more than one input energized in OR gatec) Both (a) & (b)d) None

42. Pure semiconductor showsa) infinite resistance at 0cb) increase in resistance with increase in temperaturec) decrease in resistance with increase in temperatured) none

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43. i. Dos isa) programme b) processing unitc) disk operating systemd) all

ii. At starting date is given ona) hard disk b) ROMc) RAMd) Floppy

44. Software is a a) programmeb) languagec) operating systemd) all

45. Most latest device used in computera) microprocessor b) diodec) transistord) chips

46. In straight conductor, the resistance do not depends upona) temperature b) lengthc) material d) shape of cross section

47. Electrical bounding and shielding is sued to a) avoid accumulation of static chargeb) give stability in ratio receptionc) both a & bd) none

48. The work done on a moving charge from one point to another is depend upona) the path takenb) position of two points

49. Thermo-couple is a device which convertsa) heat energy into electrical energyb) electrical energy into mechanical/heat energy

50. Mark the correct statementa) In AND gate, out put will be high when all inputs are highb) In Or gate, output will be high when any or all are highc) Both a & bd) None

51. In a transistors symbol the direction of arrow indicatesa) direction of electron flow in emitterb) direction of majority charge carrier in emitterc) direction of minority charge carrier in emitterd) direction of holes flow in emitter

52. When on NPM transistor is used as an amplifier, the electron flow froma) emitter to baseb) base to collectorc) collector to base d) base to emitter

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53. Resistance in pure semi conductor isa) infinite at oCb) increase with temperaturec) decrease with temperatured) remains constant

54. The input of computer primarily goes to thea) RAMb) ROMc) Floppy discd) Hard disc

55. Computer processes at a timea) one instructionb) millions of instructionsc) two instructions d) none

56. Algerithma) Consists of finite no.of steps has cutputs are definiteb) Consists of infinite no. of stepsc) May not have out putd) None

57. Ceramic fibers area) used for high temperature applicationb) heat resistant and dissipates heat slowlyc) both a & bd) none

58. In composite impact damage and disbounding in honeycomb is detected bya) thermographyb) flaser holographyc) visual inspectiond) none

59. Strength of composite depends upona) fiberb) matric materialc) heat treatmentd) all

60. After cyaniding quenching is done ina) waterb) brinec) oil both c & b

61. Unix isa) single operating unitb) double operating unit (multi purpose)c) CAD & record of engineering organization

62. The most powerful computer isa) micro computerb) super computerc) mini computerd) laptop computer

63. Matrix is used toa) transfer stress to fibersb) takes stress from the fiberc) increase the hardness of adhesived) (a) and give hardness to the fibre

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64. Catalyst in a composite acts asa) hardnessb) curing agentc) to increase the properties of resind) all

65. The difference between digital and analog computera) analog computer has large memoryb) digital computer has high cost and is difficult to programmec) analog computer is less accurate d) b and c are correct

66. Excess speed of computer depends upona) software usedb) frequency and signal receivedc) both software and hardware usedd) only on hardware used

67. The device having greatest memorya) Winchester type diskb) Tape type recording instrumentc) Floppy diskd) None

68. Which is rotated to memorya) hard diskb) key boardc) CD-ROMd) Monitor

69. Representation of GATES is

a) = c) =

b) = d) =

a) 1 & 2 b) 2 & 3 c) 1 & 3 d) 2 & 4

70. For the lightening protection on the composite material, useda) carbon/graphide composite one the surfaceb) Al-layer to provide a conductive pathc) No lightening protection is needed for the composited) Aromide layer is used

71. Hybride isa) used as a core material in compositeb) two or more different layer of reinforcing materialc) used as a met rise materiald) refrigeration of the film

72. Material of the rivet isa) 5056 Al-alloyb) 2024c) moneld) none

73. Liquid quenching causesa) cold water quenching ensures more resistance to corrosionb) hot water quenching does minimize distortion and eliminates crack

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c) hardness of the surface of with brittlenessd) all

74. Which offers uniform magnetic fielda) earth b) bar magnetc) circular magnetd) horse show magnet

75. Corrosion between the riveted joints isa) intergranular corrosionb) surface corrosionc) fretting corrosiond) stress corrosion

76. Speed of the motor can be increased bya) field windingb) X-sectional area of the field (armature)c) Exitation windingd) All

77. Welding full can be detected bya) Dye penetrant methodb) Ultrasonic testc) X-ray d) Magnetic particle detection

78. 90 angle made on the working edge of the scriber is a) used to scribe or marks the line on metal surfaceb) for reaching and marking through holesc) to help the correct markingd) all

79. Calipers are used for the purpose ofa) Measuring inside diameterb) Measuring outside diac) Measuring distance between two surfaced) All

80. In a venire micrometer, 9 parts of the main scale is devided into 10 parts of the vernier scale the main scale has the graduation of 1mm. The least count is

a) 0.01 mmb) 0.020 mmc) 0.009 mmd) 0.001

81. Mark the correct statementa) E-glass is electrical glassb) Has low strength and high wtc) E- glass is borosilicate glassd) All

82. In aramida) Kevlar has 4 times the strength of aluminumb) White colourc) Alld) None

83. Boron fibres area) made by depositing tungsten on boronb) boron on tungusten deposite

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ANSWERS:

1. C 2. A, B 3. B 4. A 5. D

6. B 7. A, D 8. D 9. A 10. D

11. B 12. B 13. C 14. A 15. A

16. B 17. D 18. C 19. C 20. D

21. A 22. - 23. B 24. C 25. D

26. A 27. A 28. D 29. B 30. –

31. B 32. B, C 33. A 34. A, C 35. A

36. D 37. C 38. C 39. A 40. B, C

41. A 42. C 43. C, C 44. A 45. A

46. D 47. C 48. B 49. A 50. C

51. D 52. A 53. A 54. A 55. A

56. A 57. A 58. B, C 59. D 60. D

61. A 62. B 63. A, D 64. B, D 65. C

66. A, D 67. A 68. C 69. C 70. B

71. B 72. C 73.D 74. C 75. C

76. A 77. B 78. B 79. D 80. C

81. D 82. A 83. B

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PAPER – II (OCT- 1999)

1. Generally speaking, ball grip length should bea) one and one half times the thickness of the material through which they extendb) equal to the thickness of the material through which they extend plus approximately one diameterc) equal to the thickness of the material through which they extendd) twice the thickness of the material through which they extend

2. Which of the following is not contained in type certificate date sheeta) minimum fuel grade to be usedb) AD’Sc) Location of the datumd) Control surface adjustment

3. Refer the figure, what will the ohmmeter readfigure

a) 20 ohmb) 0 ohmc) 40 ohm

4. The numbering system ALPPHT-88 is fora) blind type lock boltb) pull type lock boltc) stump type lock boltd) none

5. The nut code number AN 320-10 meansa) 5/S inch diameterb) 10 number of threads cutc) 5/16 inch diameterd) 5/32 inch grip length

6. N-Alloy 7075 containsa) 2.5 Mgb) 1.2 Mnc) 5.6 Znd) 2.5 Zn

7. Mark the correct statementa) T4 solution heat treatmentb) T5 solution heat treatmentc) T6 solution heat treatment + artificially agedd) Both a & c

8. Monel is____a) heat treatable and non-treatableb) non-heat treatablec) magneticd) as in (b) and weldable

9. Titanium is heat treated fora) relief of stresses set up during cold workingb) provide maximum durabilityc) thermal hardening to improve strengthd) all are correct

10. Which hardering heating (hardness) is best suitable for sleep and alloya) Brinell and Barcolb) Brinell and Rockwellc) Rockwell and barcol

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d) Barcol (soft) and Rockwell

11. Flexible nose is sized bya) inside diameter with 1/16 increamentb) outside diameter with 1/16 increamentc) inside diameter with 1/22 increament

12. In Rockwell hardness testing, the minor preliminary load is applied a) to securely lock the part in placeb) to make indentation in the partc) to get accuracy of the readilyd) all are correct

13. The color code of fuel line isa) redb) blackc) blued) yellow

14. Teflon nose is designed to meet the requirement ofa) higher operating temperature and pressureb) highly resistant to vibration and fatiguec) high operating strengthd) all are correct

15. If 28 volt current is passed through resistant of 10, the power consumed by that component is (P=V=V²/R)a) 78.4 watt b) 780 wc)784 w d) 0.78w

16. Extension tap is used toa) cutting threads in deep holes & cutting the thread in nutb) cutting threads in nutc) start the cutting of the threadsd) production and automatic tapping machine

17. Finished threads on bolt is checked bya) screw pitch gaugeb) ring thread gaugec) filler gaged) all

18. Broken tap in the hole is removed bya) tap extractorb) easy out screw extractor (for broken screw)c) by drilling on the top of tapd) none

19. If the rpm of the driver gear is 60, then the rpm of driven gear isa) 120 rpmb) 100 rpmc) 60 rpmd) 30 rpm

20. Identify the figurea) bevel gearb) helical gearc) spur geard) worm gear

21. Identify the figurea) glat drill

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b) straight fluited drillc) twist drilld) none

22. Identify the figurea) flared tublarb) plateless fittingc) head and stampd) imaged plumbing

23. Voltmeter is always connecteda) in series with the circuitb) in paralled with the circuitc) either in series or paralleld) none

24. Stump type lock bolt is driven with the help ofa) pneumatic pulling gunb) special driving toolc) pneumatic leveling hammer and bucking bard) all

25. Which hammer is used for rivetinga) ball pin hammerb) straight pin hammerc) cross pin hammerd) riveting hammer

26. Class-B fire includesa) fire in wood, paper, cloth etcb) fire in petroleum productc) fire in combustiable materiald) all are correct

27. For extinguishing fire in enginea) CO2 type extinguishing is usedb) Dry chemical extinguishant is usedc) Carbon tetra-chloride extinguishant is usedd) Halogenated type extinguishant is used

28. While jacking one wheel of an aircrafta) tripode-type jack is usedb) a/c should be raised 6” to 8” above the groundc) the remaining wheel should be chocked properlyd) all are correct

29. The function of the jack point is to a) ensure that the a/c load is properly distributed at the jack pointb) prevent damage of the structure of the a/cc) both a & bd) none

30. Choose the correct statement regarding towinga) a/c equip with tail wheel and towed generally from forwardb) nose wheel of a/c are generally towed from forwardc) nose wheel steering should be set to full steer positiond) all are correct

31. When hydraulic lock is detected in an engine then,a) propeller is pulled through in the opposite directionb) spark plug is removed and propeller is rotated in opposite directionc) spark plug is removed and propeller is turned in normal directiond) none

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32. The voltage of an Ni at battery cell isa) –b) –c) –d) –

33. Which of the following depicts deficiency is in cold welda) un sufficient heatb) rough and irregular appearancec) not feather into the base metald) all are correct

34. For fluorescent penetrant inspection, the diffect indicated bya) Brilliant yellow green for defect and deep blue violet for sound surfaceb) Deep blue for defect and yellowish green for sound surface c) Red for defect and white for sound surfaced) White for defect and red for sound surface

35. A transducer convertsa) electrical energy into mechanical energyb) mechanical energy into electrical energyc) chemical energy into electrical energyd) one form of energy into another (electrical) energy

36. Circular magnetization can detecta) lateral defectb) longitudinal defectc) transaction defectd) all

37. De-magnetization is carried-out bya) moving the part away from the alternating field of solenoidb) deflecting the part to a magnetizing field continuously inversing in direction and at the same time gradually decreasing

the strengthc) passing the a.c. to the part and reduce the current to zerod) all are correct

38. In chrome-plating process, the crisis deposited on the part from a) cathodeb) electrodec) electrolyted) tank

39. After tempering, the part is cooled ina) hot waterb) cold water rapidlyc) the rate of cooling from tempering temperature does not effect on the reacting structured) spraying hot water

40. Round black bar is well inspected by which NDT a) radiographyb) eddy currentc) ultrasonic

41. The programmer step up the voltage in the ratio of 5:1 and secondary current is 0.20 amp, the primary ?????????

42. What is the descriptive of the annealing process of steel during and after it has been annealeda) Rapid cooling, high strengthb) Rapid cooling, low strengthc) Slow cooling, low strengthd) Slow cooling ( high strength) and increasing resistance to wear

43. Clevis bolt is designed to takea) shear loadb) tensile load

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c) external load d) all

44. The main control unit of computer in present isa) VDUb) CPUc) Key boardd) Hard disk

45. While testing for magnetic testing, it was found non-magnetic, in nitric acid it was found rapid action, greenish blue color, the material is

a) Ni-steelb) 18-8 steelc) moneld) CRS

46. Analogue computer isa) more correct than digital computerb) less accurate than digital computerc) equal to digital computerd) none

47. In computer, machine level language isa) high level languageb) low level languagec) very high level languaged) none

48. Decimal equivalent t binary no. 110 isa) 2b) 3c) 6d) 9

49. Al-alloys can be heat treateda) solution heat treatmentb) precipitation heat treatmentc) artificial aging indicated with W(T5)d) both a & b

50. In NDT, satisfactory performance of magnetic particle inspection cannot be find ina) Cdb) Cuc) Sn & Znd) None

51. The transferring metal from one object to another by chemical and coating is done to protect the base metal froma) Corrosionb) Wearc) Increase the dimension to protect the base metal against chemical reactiond) all

52. Improve tensile strength, ductility and sleck (shock) resistance of Mg-alloy casting are normallya) Case hardenedb) rotation heat treatmentc) none

53. No. of threads can be checked bya) screw pitch gaugeb) thickness gaugec) radius gauge

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d) all

54. A gear rack when mashed is sued to changea) rotary motion to reciprocating motionb) reciprocating motion to rotary motionc) transmit loadd) none

55. Convert 27 in binary no-a) 11111b) 10111c) 11011d) 11101

56. The magnitude of induced emf produced in a coil, when a magnet is inserted in it, does not depend upona) no. of turns in coilb) resistance of coilc) magnetic moment of magnet (magnetic strength)d) speed of rotation of magnet

57. Kewlar composite material has a) a bright grey colorb) less corrosion when in contact with N-alloy

58. Carbon graphitea) is same strong as kewlarb) is more stronger than kewlar (compressive strength)c) is more brittle than kewlard) none

59. Metal matrixa) used in a/cb) uncommonc) same as plastic matrix with fibre reinforcementd) none

60. A transfer is___a) amplify the low input signal to high output signalb) used as a rectifierc) used in transducer setd) both a & c are correct

61. Which is preferred in a/ca) TIG weldingb) MIG welding

62. The tool shown isa) flap wrenchb) die stockc) none

63. Which Boolean’s algebra is not truea) A+B=B+A b) A.0=0 c) A.A=0 d) A.1=0

64. Which is sued as universal building block (gate)a) ANDb) NANDc) OR

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d) XOR

65. The weld is B (Double bevoled T-joint)a) V – butt weldb) U – butt weldc) Beveled butt weldd) T – butt weld

66. Brinnel hardness tester is used fora) larger part and low hardnessb) small part and low hardnessc) small part and large hardnessd) large part and high hardness

67. Barcol tester is useda) soft materialb) steelc) hard materiald) all

68. The ATA-100 specification no. for hydraulic, pneumatic, stabilizers and engine isa) 55,36,29,77b) 36,29,55,77c) 29,36,55,77d) 29,36,77,55

69. The missing edge or planes are shown bya) dotted line b) dashed linec) hidden lined) all

70. In some large a/c, in the side of main L/G strut, there is a hydraulic jacka) to jack-up the a/c when one wheel is to be raisedb) to serve the oleo shock strut when a/c is jacked upc) to jack up the aircraft completelyd) all are correct

71. The precision measuring tool, that is used for measuring crankshaft and main bearing journal for out of roundness and wear is

a) dial gageb) depth gagec) micrometer caliperd) vemier caliper

72. The dimensional inspection of a bearing in rocker arm can be accomplished bya) depth gage and micrometerb) telescoping gage and micrometerc) thickness gage and push fir arberd) none

73. The cracks adjust to weld is due to a) rapid cooling adjacent b) excessive O2c) excessive O2Hzd) all are correct

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ANSWERS:

1. C 2. B 3. C 4. B 5. A

6. A, C 7. D 8. B, D 9. D 10. B

11. A 12. A 13. A 14. D 15. A

16. A 17. B 18. A 19. A 20. B

21. C 22. B 23. B 24. C 25. A, D

26. B 27. A 28. C, D 29. C 30. B, C

31. C 32. ?? 33. D 34. A 35. D

36. B 37. D 38. B, C 39. C 40. B

41. A 42. C 43. A 44. B 45. A

46. B 47. B 48. C 49. D 50. D

51. D 52. B 53. A 54. A 55. C

56. B 57. B 58. B, C 59. B 60. A

61. A 62. A 63. D 64. B 65. B

66. A 67. A 68. C 69. C 70. A, B

71. A, C 72. B 73. A

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PAPER – II (OCT – 2001)

1. Flareless tube fitting consists of following parts a) body, sleeve, flared tube and nutb) body, sleeve and nutc) sleeve, nut and end terminalsd) sleeve, shoulder, beaded tube, and nut

2. Color of fire extinguisher fluid line isa) yellow b) brown or yellowc) redd) maroon

3. If two end terminals of PN junction is connected through a conducting wire thana) a steady current flows from P-type to n-type materialb) no steady current flows from wirec) steady current flows from n-type material to p-type material through wired) any one of the above

4. A prime limitation with directly heated cathode is due to a) low frequencyb) voltage fluctuationc) high frequencyd) phase

5. Bottle jack is used fora) removing a wheel or complete single wheel assembly form one landing gearb) only removing brake unitc) only removing single unitd) all of the above

6. During jacking the a/c outside the hangera) face the a/c tail to wingb) can be jacked in any directionc) surface should be hard and leveld) none

7. Mark the correct statementa) straight flute remmer has a tendency to reduce chatterb) buttoning reamer is tapped at bottom for starting aidc) spiral flute reamer is tapped at bottom for aid in starting d) none

8. In a PNP transistor application, a solid state device is turned on when thea) base is negative w.r.t the emitterb) base is positive w.r.t. the emitterc) emitter is negative w.r.t based) any one of above

9. Where is an AN-clevis bolt used in an airplanea) for tension and shear load conditionsb) where external tension load are appliedc) only for shear load applicationd) only for taking radial loads

10. To detect a minute crank using dye penetrant inspection usually requiresa) That a developer is applied to flat surfaceb) A longer than normal penetrating time

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c) The surface to be highly polishedd) Do not require excessive surface preperation

11. CPCP refers to a) control processing of computer programmeb) corrosion prevention and control programmec) corrosion prevention and cause detection programmed) corroded parts corrugation programme

12. Mark the correct statementa) ATA – code 30 indicates, lightb) ATA – 61 code indicates propellerc) ATA – 29 indicates power plantd) All are correct

13. When capacitive reactance becomes equal to inductive reactance of a circuit it is calleda) phase-inb) phase-outc) resonantd) impedance matching

14. PFD in reference to NDT meansa) Ultrasonic flow detectionb) Dye penetrant inspectionc) Anodic detection inspectiond) Eddy current testing

15. When a lead-acid battery is charged by constant current method, then its full charge can be detected asa) Three testing of electricity gives same specific gravity valueb) Voltage stops risingc) Gassing will occurs rapidlyd) All above are wrong

16. What should be the first step of the procedure in sketching an a/c wing skin repaira) draw heavy guidenessb) may out the repairsc) block in the viewsd) draw extension lines

17. A cathode (election emitter) used in thermionic emission must have following characteristicsa) high matching pointb) high matching strengthc) low work functiond) all above are correct

18. When bolts and rivets are used to joint the metal sheets, then both should be protected from corrosion bya) applying grease on bothb) by plating bolt and rivetsc) by painting bolt and rivetsd) they must be placed separately approximately, 2-times than the thickness of the metal being joined

19. Denting in metal tube is acceptable ifa) not more than 10% of tune diameterb) less than 20% of tube diac) not more than 40% of tube diad) must be rejected if dent occurs

20. Primary control surfaces area) elevator rudder, aileron and leading edge flapb) elevator, rudder, aileron and trailing edge flapc) elevator, slots, spoiler and flapsd) elevator, rudder and aileron

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21. Crazing in plastics occurs due to a) manganese b) phosphorusc) silicond) sulphur

22. Mark the correct statementa) single needle pointed end scriber should be sharp and surface should be checked for flatness with straight edgeb) single needle pointed end scriber should be sharpc) 90º bend, scriber should not be sued as far as possibled) all of the above

23. If a line is divided into 25 division so that 25 divisions of this line is equal to 24 division of another line so that minimum distance that can be measured is equal to difference between the value of each division . it is the principle of

a) DTIb) Micrometerc) Vernier scaled) Rules

24. Magnesium surface should be cleared witha) stiff-hog bristleb) steel woolc) crocus clothd) steel wire brush

25. Which of the following frequency is sued for space propogationa) 2 KHZb) 30 MHZ and abovec) upto 30 MHZd) 20 KHZ – 200 MHZ

26. Fusible metals are used for tube bending hasa) low melting point and ductileb) hard and high melting pointc) should expand on solidifyingd) both a & b are correct

27. For very accurate readings during such calibrations the thimble may be viewed under a microscope ofa) low magnificationb) medium magnificationc) high magnification

28. When hydraulic fluid lines and electrical line is passing through same portion of a/c, thena) Hoses should be fitted above the wires and should be secured to a/c structureb) Electrical wire should be fitted above and to secure to a/c structure c) A minimum of 4-distance should be maintained between two and any of two can be unstable aboved) Either of wire can be installed above and a minimum of

29. In straight and level flighta) lift=drag and thrust=weightb) lift=thrust and drag=weightc) lift=weight and drag=thrustd) none of the above

30. Black smith anvil is made bya) machining b) forging c) extrusiond) both a & b

31. Crevice corrosion caused due to a) metal and non-metal comes in contact and oil is present between them

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b) contact between metal and non metalc) plastic and metal contactd) due to improper heat treatment

32. Modern computer consists ofa) hard-wareb) soft warec) CPU, input/outputd) ROM, software and logic gates

33. Fretting corrosion occurs due toa) Stationary parts are subjected to relative motion to each otherb) Direct contact with caustic liquid and battery fumesc) Improper heat treatmentd) Combination of tensile stress and corrosive environment

34. Amount of electron that can be stored on capacitor is proportional to electrolyte

a) both plate area and distance between themb) plate area and does not depend upon distance between themc) plate area and inversely proportional to distanced) distance between plates and inversely proportional to area

35. Resistance for a straight conductor does not depends upona) length b) shape of class sectionc) temperature d) material

36. Working voltage of capacitor should bea) atleast 20% higher than appliedb) atleast 50% higher than appliedc) equal to applied voltaged) less than 50% than applied voltage

37. Mark the correct statementa) Philips screw driver has sharp endb) Reed and prince screw driver has blunt endc) Reed and prince screw has larger area in centerd) Both are interchangeable

38. For high speed a/c, it has winga) thicker than low speed a/cb) thinner than low speed a/c and thick wing tipc) equal to low speed a/cd) any one of the above

39. Digital system of computer is working ona) decimal b) binaryc) hexagonald) octagonal

40. Close tolerance boltsa) can be used in machined partsb) corrosion resistance areac) tight fit is permissibled) both a & b

41. Mark the correct statementa) Prick punch is used to mark center mark for drilling purposeb) Center punch is used for removing binded rivets, bolts

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c) Prick punch is used for making reference marks on sheet metal d) All are correct

42. If the thimble scale zero mark is above the zero mark of barrel mark in micrometer, it indicatesa) positive errorb) negative errorc) zero errord) none

43. Mark the correct statementa) turbo jet engines require shorter runway length than turbofan engineb) turbo fan engines require lesser runway length for take off than turbo jet enginec) turbo jet engine produces more thrust than turbo fand) both b & c are correct

44. After welding of butt jointa) heat treatment is required as cold working to be doneb) heat treatment is not necessary as no cold working is t be performedc) with torch heat, heating the welded area only slightly \d) it is not necessary

45. Mark the correct statement in respect to fuellinga) a/c can be grounded with carbon cabinb) refueling van can be grounded with metal chain discharge behind the vanc) both a/c and van are kept at equal potential with a wired) all of the above

46. How many terminals can be taken out from studa) one terminal per studb) two terminal per studc) four terminal per studd) any no. of terminals can be taken out from one stud

47. While defuelling the sweep back wing a/ca) outboard wing fuel tanks should be emptied firstb) inboard wing fuel tanks should be emptied firstc) empennage fuel tanks should be emptied firstd) any one of the above

48. Mark the correct statementa) brinell hardness tester measure depth of penetration and reading is directly indicated on dialb) bareel is sued for testing steelc) Rockwell tester measure dia of penetrationd) None of the above

49. Depth of screw thread isa) distance between root and creast measured to axis b)distance between creast of one thread and creast of adjacent threadc)equal to line joining creast and rootd)none of the above

50. The ability to detect minute crack with radio graphy is calleda) radio graph resolutionb) radio graph sensitivityc) radio graph processingd) radiograph densitye) all

51. In plastics, minute crack occurring at weaker area due, to applied load and extends both sidesa) crazing

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r

b) creepingc) fatiguingd) crevice corrosion

52. Turn buckle consists ofa) brass barrel with left and right hand threadb) stainless barrel with either left hand or right hand threadc) only cadinium plated steel barrel and end fittingd) none of the above

53. In selecting rivetsa) no type, and size depends on shear stressb) as in (a) and tensile strength and does not depends on bearing strengthc) rivet dia should be twice the thickness of metal being joinedd) none of the above

54. If 1 cm of main scale is divided in 20 equal division 24 division of main scale is divided in 25 equal division of vernier scale, least count is

a) 0.0002 cmb) 0.002 cmc) 0.2 cmd) 2.0 cm

55. Backlash in the gear can be measured bya) D.T.Ib) Micro meterc) Thread gauge (filler gauge)d) Telescoping gauge

56. Nomex and kevlar are used for making composites asa) they are used interchangeablyb) both have some molecular sizec) both have same internal structured) both have same strength

57. Ballast is used fora) bringing the c.g. within c.g. pointsb) leveling the lateral arm on central pointc) both a & bd) none

58. Levelling of a/ca) lateral leveling of H/A is more critical than L/Ab) jacking points are located on longitudinal axisc) leveling is always done on longitudinal axisd) leveling of lateral point is always done on longitudinal axis

59. Annealing is done on heat treateable parts to a) relief internal stresses set up during cold workingb) as in (a) and harden the metalc) as in (a) and soften the metald) none of the above

60. Surface plate is checked for accuracy bya) thickness gaugeb) surface gaugec) DTId) None

61. A micro switch will close or open a circuit with the movement of of 203

a) 1” or more c) both a & b16

b) 1 or less d) none16

62. Capacitance of a capacitor is directly proportional to a) plate area and distance between plates b) plate area and inversely proportional to distance between platesc) distance between plates and inversely proportional to plate aread) none

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ANSWERS:

1. B 2. C, D 3. B 4. B 5. C, D

6. C 7. C 8. A 9. C 10. B

11. B 12. B 13. C 14. B 15. C, D

16. B, C 17. D 18. B 19. B 20. D

21. D 22. B, D 23. C 24. A 25. D

26. A 27. A 28. B 29. C 30. B

31. B, C 32. C 33. A 34. A, C 35. B

36. B 37. E 38. B 39. B 40. C

41. C 42. B 43. D 44. A, B 45. D

46. C 47. A 48. D 49. A 50. B

51. C 52. A 53. A 54. ?? 55. A, B

56. A 57. A 58. A 59. C 60. A

61. B 62. B

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PAPER – II (FEBRUARY – 2001)

1. Clevis pin useda) with head up positionb) as in (a) & washer must be applied under it

2. Peel ply means__a) prevent excess resistsb) remove, after curec) prevent vaccum bagging from stricking to the paintd) all are correct

3. In magnetic and non-magnetic material, coating thickness of ferrous and non-ferrous alloy should be measured bya) eddy currentb) magnetic particle testc) micrometer caliperd) all

4. Which takes primary loada) fibreb) metrixc) both a & bd) none

5. Which takes in part of transferred loada) fibreb) metrixc) both a & bd) none

6. In case hardening nitriding processa) with the part this heated ammonia gas is circulated within the furnace chamber

7. T- series, Z-section and angles are formed bya) rollingb) forgingc) extrusiond) all

8. Hole must be inspected for cranks or burrsa) before reamingb) after reamingc) before and after reamingd) none

9. When two surfaces fit tightly together, but can move relatively to one anothera) fretling corrosionb) intergranular corrosion

10. Unit of magnetic flux isa) webreb) Newton meterc) Both a & bd) None

11. Which statement is correcta) welded joint of thick material can not be inspected by ultrasonic testb) thin sheet metal welds are more satisfactorily checked by X-rays

12. P.N. junction in transistor hasa) forward bias

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b) reverse bias

13. Which fibre has higher compressive strengtha) carbon fibreb) aramin

14. Mark The correct statementa) Hot water quenching minimizes distortion and alleviates crack

15. Galvanometer is transferred in ammetera) By connecting low resistance in series to the galvanometerb) By connecting high resistance in series to the galvanometerc) By connecting low resistance in parallel to increase ranged) By connecting high resistance in parallel to increase range

16. Mark the correct statementa) Off set screw drivers are constructed with both ends bent at 90 to the shankb) Rachet screw driver is used for heavy dutyc) Reed and prince screw driver is interchangeable with Philips sod) All are correct

17. Where high temperature is used for brazinga) for high power solderb) special type of flux is usedc) not used for brazingd) none

18. High heat of Al-sheet from fire causesa) Increase ductility b) Decrease ductilityc) Increase resistanced) None (increase, conductance)

19. In artificial aging hardening is done ata) moderate temperatureb) room temperaturec) critical temperatured) none

20. Overnight parking shall be donea) position the a/c in down wind directionb) position the a/c in up wind directionc) as in (b) and light a/c must be tiedd) as in © and heavy a/c must be tied

21. In double start threada) lead is equal to pitchb) lead is 2 times of pitchc) pitch is 2 times of leadd) none

22. Hacksaw blade length is measureda) between center of end holesb) from the one end of blade to other end

23. Color of 2024-T Al-alloy isa) greyb) greenc) blue+yellowd) red

24. In drawing which shows the position of part in relation to other is of 203

a) detail drawingb) assembly drawingc) installation drawingd) sectioning drawing

25. The minimum distance between two clamps of a/c tube isa) 16” b) 24” c)8” d) 36”

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ANSWERS:

1. B 2. D 3. A 4. A 5. B

6. - 7. C 8. C 9. A 10. A

11. B 12. B 13. A 14. A 15. C

16. A 17. C 18. C, D 19. A 20. C

21. B 22. A 23. D 24. B, C 25. B

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JUNE – 2000

1. In 7075-0 indicatesa) annealedb) strain hardenedc) solution HTd) none

2. One r is dash on bolt head indicatesa) CRS boltb) NAS close tolerance boltc) AN standard boltd) None

3. The line used for reference of pars isa) reference lineb) hidden linec) phantom lined) black line

4. The colour of 6053 Al-alloy isa) redb) blackc) greyd) white

5. Lock bolt, which indicates flat head isa) ALPPb) ALPBc) ACSTd) ALSF

6. In flexible hoses slack is givena) 2 to 3% of total lengthb) 5 to 8 % of total lengthc) 3 to 9% of total lengthd) 10% of total length

7. When tightening of nut is precious, which tool is useda) allen wrenchb) torque wrenchc) spanner wrenchd) combination wrench

8. Which AL-alloy rivet has highest strengtha) 5056-Tb) 2117-Tc) 2024-Td) 5056-W

9. Al-alloy is not heat treated properly to have uniform grain boundaries it hasa) stress corrosionb) galvanic corrosionc) intergranular corrosiond) fretting corrosion

10. Which one is unpaireda) battery – accumulatorb) diode – NRV

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c) AC generator – vortex generatord) EMF – MMF

11. Which is used to transfer rivet size from template to new sheet is a) centre punchb) pin punchc) alignment punchd) transfer punch

12. A side clearance between piston ring and cylinder wall is measured bya) telescopic gaugeb) thickness gaugec) micrometerd) plug gauge

13. When base circuit is open at R, then a) bulb can not be turned offb) bulb can be turned offc) bulb can not be effectedd) high current will flow in circuit

14. The resistance of conductor depends ona) temperatureb) length and materialc) cross-sectional aread) all

15. In on inductive circuita) current lags behind voltage by 90b) current leads behind voltage by 90c) Current and voltage are in phased) None

16. In magnetic particle inspection, nickel plating does not give indication ofa) crackb) discontinuitiesc) corrosiond) none

17. In dye penetrant inspection, the defects under while light appersa) blackb) greenc) red d) all

18. Which is unpaireda) dye penetrant – capillary acceptanceb) ultrasonic test – peizo electricityc) eddy current test – current acceptanced) magnetic test – skin test

19. Dye penetrant inspection is applicable toa) ferrous alloys onlyb) plastic and non metalc) non ferrous alloys metal d) all

20. In ultrasonic test, when mechanical stress vibration is applied to crystal quartz then these area) electrical energy and voltage are producedb) more vibrations are producedc) as in (A) and varies with the thickness of crystald) none

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21. Form of corrosion which occurs between metal and non metal is a) filliform corrosionb) crevice corrosionc) exfoliation corrosiond) fretting corrosion

22. Normalizing is applicable toa) cu-alloysb) Al-alloysc) Ferrous alloy onlyd) Both a & b

23. Main content of 5056 Al-alloys isa) Zn b) Mg c) Cu d) Si

24. Freating the parts in anhydrour ammonia isa) carburizing b) nitridingc) cyanidingd) nor-malizing

25. For maximum elongation, ductility, tensile strength and impact resistance Mg-alloy isa) solution heat treatmentb) castedc) precipitation heat treatmentd) none

26. Which one is not primary cella) Zn-carbon cellb) Lead acid cellc) Alkaline cell

27. Ni-cd battery is charged witha) constant current varying voltageb) constant voltage varying currentc) both (a) & (b)d) none

28. An ac circuit consists of inductance of 10, capacitance 4 & resistance 8 the impedance of the circuit is Z=R²+(XL-XC)a) 6 b) 10 c) 5.5 d) 8

29. Glider has lift due to a) high aspect ratio (s/c)b) high lift/co-efficient of lift (L/C) ratioc) symmetrical wingd) more wing area

30. In flight extending flapsa) increase liftb) increase lift and drag bothc) increase dragd) reduce stalling speed

31. Which has increasing order of strengtha) 2S, A14ST, 17ST, 24STb) 2S, 24ST, 17ST, A17STc) 2S, 17ST, 24ST

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d) 2S, A17ST, 24ST, 17ST32. Composite has

a) resistance to wearb) high strength to weight ratioc) resistance to corrosiond) all

33. The static vents with the flat surface plate at two position to a) minimize position errorb) have is formation freedomc) both a & bd) none

34. Heat treated defect in metal is detected bya) ultrasonic testb) eddy current testingc) dye penetrant testingd) radiography testing

35. An ac circuit has inductance 3 and resistance of 4, then impedance of the circuit isa) 3 b) 1 c) 5 d) 7

36. The maximum radius for bending of Al-alloy should be a) 3 times the sheet thickness b) 6 times the sheet thicknessc) 9 x sheet thicknessd) 10 x sheet thickness

37. The truth table is forA B Y0 0 00 1 11 0 11 1 0

A) OR-gateB) X – OR gateC) AND-gateD) NAND gate

38. Beryllium copper has greater advantage ofa) creepb) high strength and uniform propertiesc) corrosion resistanced) uniform grain structure

39. Mg is ________a) Susceptible to corrosionb) Has tendency to crackc) Resistance to corrosiond) Both a & b

40. For most metals, which oxy-acetylene flame is useda) neutral flameb) oxidizing flamec) carburizing flamed) none

41. Which one is heat treatable alloy

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a) 24 Sb) clad 24 Sc) A17Sd) Any Al-cu alloy

42. Rack is mest with a gear, it is used to change (the purpose of rack and pinion is to change)a) rotary motion to reciprocating motionb) reciprocating motion to rotary motionc) both a & bd) none

43. Lift depends upona) velocity of relative windb) density of airc) wing span (area)d) all

44. Metal metrix composite is a recent conceptional material in which a) resin is reinforced with metalb) resin and fibres are reinforced with metalc) fibres are reinforced with metal during molten staged) all are correct

45. In SAE-1030, carbon percentage isa) 30% b) 9.5% c) 10 % d) 30%

46. To roll a pure Al-sheet over Al-alloy is calleda) Al-cladb) Pure cladc) Laminated Ald) Both a & b

47. Magnetic particle inspection (MAP) can be done when flow isa) at or near the surfaceb) on or in depth of surfacec) near or in depth of surfaced) all

48. Cd-plating is done on steel partsa) to prevent corrosion b) to built upc) to give tusture and brightnessd) all are correct

49. Heated-treated and non-heat treated metal 25, distinguished bya) magnetic particle inspectionb) eddy current testc) dye penetrant inspectiond) ultrasonic test

50. Titanium is heat treated bya) normalizingb) full annealingc) case hardeningd) all

51. Maximum bending in case of copper tubing isa) three times to internal diameterb) six times to internal diameterc) nine times to internal diameterd) twelve times to internal diameter

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52. Pickling of steel is carried out in a) H2SO4 b) Muriatic acid c) all d) done

53. Peizo electric effect isa) if mechanical stresses applied to a quartz crystal, then voltage is inducedb) frequency depends on thicknessc) both a & b

54. Electroplating providesa) corrosion resistant surfaceb) wear resistant surfacec) both a & bd) none

55. Re-heating is done toa) remove strain and stressesb) remove effect of heat treatmentc) remove hardness and brittlenessd) none

56. In cable strand, the wires are performed to providea) corrosion resistanceb) flexibilityc) prevents from ravallingd) both a & b

OCT – 2000

1. The piston engine works ona) Boyle’s lawb) Brayton cyclec) Charle’s law & otto cycled) Both a & c

2. The mechanical efficiency of piston engine is determined bya) engine speedb) fuel usedc) mean effective pressured) mixture ratio (throttle setting)

3. The main alloying element is 7075 Al-alloy isa) Cu b) Mn c) Zn d) Si

4. The tubes are sized bya) inside diameter in increment of 1/16”b) inside diameter in increment of 1/32”c) out side diameter in increment of 1/16”d) out side diameter in increment of 1/32”

5. Flared tube fittings used in a/c are made ofa) Al-alloyb) Cuc) Steeld) All are correct

6. Muntz metal consists ofa) 60% of Cu and 40% of Zn

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b) 60% of Zn and 40% of Cuc) as in (a) and basically brassd) as in (b) and basically brass

7. Steel has fine grain structure, whena) when heated above the critical temperatureb) when heated below the critical temperature

8. The soldering of Al-alloys differs from other metals due to a) high heat expansion and contractionb) greater heat inputc) uneven expansion and contractiond) all

9. Kirchoff’s law is applicable isa) d.c b) a.c. c) d.c. circuit having resistance d) ac & dc

10. In modulation, the available band isa) oneb) twoc) no bandd) many band

11. The modulation in which, amplitude is kept constant and frequency is changed is calleda) amplitude modulationb) space modulationc) frequency modulationd) phase modulation

12. The angle of attack is thea) acute angle between aircraft longitudinal axis and chord line to which aerofoil is mounted on the aircraftb) horizontal acute angle between the symmetry aircraft and wind direction from which it touches the aircraftc) the acute angle between the summetry of the aircraft and the chord line of aerofoil sectiond) all are correct

13. In NDT of material by Dye penetrant inspection (DPI) the volume of defect is interpreted bya) Staining rateb) Staining speedc) Staining extentd) All

14. In UST, scanning is carried out by moving both probes simultaneously in opposite direction fora) flash butt joint (weld)b) heavy forgingsc) heat treatment defectd) thickness measurement

15. During fuelling, the most necessary precaution to be observeda) grounding connection first made to aircraft and then fuelling vehicleb) grounding connection first made to fuelling vehicle and then the aircraftc) skillness of fuelling persond) all are correct

16. The fluid use for all types of aircraft engines except rocket is a) gasoline b) air c) ATFd) All are correct

17. In composites, the strength is provided bya) reinforced fibreb) core c) resin

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d) (a) and fibre

18. In hardness testing of composite, the hardness is measureda) resinb) reinforcing fibrec) specific chartd) both a & c are correct

19. In composites, repair the part is steeped rather than to be scrafed fora) uniform shear stressb) uniform tensile stressc) smoothnessd) both a & b

20. After honeycomb repair, the moisture entrapment is inspected bya) radiographyb) ammeterc) laser holography d) all

21. In uniform fluid flow, the fluid is first made to flow through a tube and the pressure exerted by the fluid is measured bya) dynamic pressureb) static pressurec) reynold’s no.d) all

22. PARKETON is used for protection ofa) steelb) numiniumc) Mgd) As in (a) and cable

23. The rust and corrosion is removed from highly stressed steel parts bya) abrasive paperb) fine buffling cloth on buffling wheelc) wire brushd) all

24. Centre drill is used to producea) short hole and CSK hole (countersunk)b) short hole and large holec) both a & bd) none

25. During repair procedure of composite part treatment is done for a) small disbandsb) restore surface protectionc) seal honeycomb casting d) none

26. Synthetic rubber used in the aircraft is designated GRM asa) poly sulphide polymerb) isobutylenec) complex of butylenes and cresylonitriled) government rubber mono-vinyl acetylene or neoprene

27. The neutralize the surface of Ni-cad battery compartmenta) Boric acidb) Waterc) Backing soda

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d) All

28. Close tolerance bolt is identified bya) triangle marking on headb) crossed triangle marking on headc) circle marking on headd) triangle on head with plus marking within it

29. While jacking, the approved procedure isa) both wheels are raised togetherb) wheels are raised one after anotherc) –d) –

30. The class of fit required for a tight drive fit isa) class-1b) class-2c) class-3d) class-4

31. Piston engine’s mechanical efficiency differs due to a) difference of pressure b) difference of temperaturec) difference of grade of fuel usedd) difference in mass of fuel

32. A device which gives lateral control and is mounted at the opposite surface of winga) spoiler b) vertex generatorc) tabd) flap

33. The presence of water can be detected bya) USIb) DPIc) Endoscoped) Radiography

34. Aircraft bolts are generally manufactured with a a) Class – 1 fit for the threadsb) Class – 2 fit for the threads c) Class – 3 fit for the threadsd) Class – 4 fit for the threads

35. The nose of l00LL AVGAS dispenser isa) red b) bluec) blackd) green

36. Which is low energy logic circuita) TTLb) ECLc) Both a & bd) None

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ANSWERS: JUNE - 2000

1. A 2. C 3. C 4. B 5. D

6. B 7. B 8. C 9. C 10. C

11. D 12. B 13. B 14. D 15. A

16. B 17. C 18. B 19. D 20. C

21. B 22. C 23. B 24. B 25. A

26. B 27. B 28. B 29. A 30. D

31. C 32. D 33. A, C 34. B 35. C

36. A 37. B 38. B 39. D 40. A

41. D 42. A 43. D 44. C 45. A

46. D 47. A 48. A, D 49. B 50. B

51. A 52. A 53. C 54. C 55. C 56. D

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ANSWERS: OCT-2000

1. A, D 2. C 3. C 4. C 5. D

6. C 7. A 8. B 9. D 10. B, D

11. C 12. B 13. C 14. A 15. B

16. B 17. A, D 18. D 19. A, B 20.D

21. A 22. D 23. B 24. A 25. B

26. D 27. A 28. C 29. A 30. D

31. C 32. A 33. D 34. C 35. B 36. B

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PAPER – II (FEB-2001)

1.Color code of 2024 Al-alloy tubing isa) white b) greenc) redd) black

2. Head marking of corrosion resistance steel (CRS) bolt isa) raised dash (single)b) raised ring/dashc) recessed triangled) no head marking

3. Rivet of ⅛” diameter is replaced bya) two 1/16” diameter rivetb) three 1/16 dia rivetc) three 1/32 dia rivetd) none four 1/16 dia rivet

4. Rivet can be removed bya) center punchb) prick punchc) pin punch (drift punch)- drive or tapered punchd) alignment punch

5. head marking shows which bolt a) CRS b) AN-standard c) Al-alloy (2024) d) close tolerance

6. After welding part must bea) hardened b) normalizedc) annealedd) tempered

7. When material is forced through a die to take the shape of die, is calleda) Forgingb) Rollingc) Extrusiond) Casting (Mg)

8. All long extruded parts such as bar, tube, pipe etc are stored a) horizontallyb) horizontally with well supported along its lengthc) vertically inclined at an angle of 60° d) all

9. Bronze is Cu-alloy containinga) tin b) zinc c) titaniumd) all

10. Lay lining in the fitting indicatesa) size of the noseb) types of the fluid to be usedc) date of manufactured) to identification of co-axial junction

11. Stress corrosion occurs ina) wing skinb) compressed part

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c) bolt holed) tubing with tabbed thread fitted in cast alloy

12. In joined part, the opposition offered in crushinga) shear strengthb) bearing strengthc) compression strengthd) –

13. The part which is dry and un lubricated, which of the following occursa) erosionb) abrasionc) fettlersd) all

14. In radiography NDT, which of the following factor does not affect the test a) distance of film and exposure angleb) timec) material thickness, density, shape & sized) film characteristic

15. Which of the following pin is used to take shear loada) taper pinb) clevis pinc) roll pind) cotton pin

16. In pulse echo method, liquid coupling used fora) reduce a caustic attenuationb) reduce a caustic mish matchc) –d) –

17. The sketch giving the discription of object made up of two or more partsa) detail drawingb) assembly drawingc) installing drawingd) none

18. Identify the bolt (CAIP-BL/2-3)figure

a) 12 point ballb) 12 point drilled boltc) 12 point extender washer bolt (cup washer locked)d) 1 double haxagon head bolt

19. Minimum bend radius of flexible hose depends upon a) type of the materialb) size of the hosec) working pressured) both a & c

20. Regarding the plumbing of rigid tube, which is true a) less dia tubing requires less distance supportb) less dia tubing requires more distance supportc) large dia tubing required less distance supportd) large dia tubing requires more distance support

21. Double flaring providesa) smoothnessb) more concentricc) seals betterd) all

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22. Combination of corrosion resistance steel (18-8 steel)a) 8% Ni and 18% chromiumb) 18% Ni & 8% chromiumc) 29% chromium & 8% nickeld) 8% chromium & 29% nickel

23. As per ATA-100 specification, the correct sequence of air conditioning, fuel, navigation and oil system isa) 21,28,34,79b) 21,34,28,79c) 31,34,52,80d) 32,28,34,79

24. Find out the reading of metric micrometera) 5.46b) 5.64c) 0.564

25. Pitch of the micrometer isa) 20 TPIb) 40 TPIc) 30 TPId) 50TPI

26. Axial distance covered by a threaded fastener in one complete revolution is calleda) pitchb) lead c) boltsd) none

27. Identify the figure a) Typical extractor toolb) Tang break punchc) inserting toold) none

28. In chisel, the shape of the cutting edge is groundeda) convexb) convex to concentrate the shock at the center of the cutting edge

29. In engineering drawing, the lines indicate the alternate position of parts or relative position of a missing parta) hidden lineb) phantom line

30. Least count of micrometer isa) 0.01 mmb) 0.001 mmc) 0.0001 mmd) 0.1 mm

31. What amount of load is acting on the bolt f extension bar is used on the torque wrench as shown in figurea) 150 lbsb) 125 lbsc) 175 lbsd) 200 lbs

32. Magnetic flux depends upona) no. of turnsb) rpm

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c) rate of cutting of fluxd) all

33. Inter granular corrosion is repaired bya) cleaning the part and coating the zinc-chromate primarb) replace the partc) both a & bd) none

34. Fatigue crack occurs due toa) continuous reversal loadb) in new partsc) both a & bd) none

35. Corrosion in a hole is removed bya) helicoil insersionb) acres sleeve usedc) scrap the partd) drilling

36. To reduce the precipitation, the medium used isa) waterb) airc) oild) brine

37. Verticle portion of the structure in aircraft is indicated bya) butt lineb) water linec) station lined) all

38. Electrolyte in Ni-cd batterya) takes no part in chemical reactionb) serves as a conductor on –OH ionc) both a + b are correct

39. (0.625)10=( )2a) 0.110 b) 0.101 c) 0.011 d) 0.100

40. (1010101)2 = ( )10a) 110 b) 85 c) 75 d) 95

41. Power factor in d.c. circuit isa) unityb) infinitec) zerod) none

42. Unit of electrical energy isa) kilowatt hourb) ampearc) watt hourd) all

43. Power can be calculated bya) V²/R b)l²R c) V.l d) all

44. Effect on the part by varying frequency in eddy current testing isa) skin effect

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b) –c) –

45. Which instrument is affected by position errora) Altimeterb) ASIc) VSId) Both a & c

46. Pitot pressure is used ina) altimeter b) ASIc) VSId) All

47. Figure shows

a) I angle projectionb) II angle projectionc) III angle projectiond) Sectional projection

48. The heat conductivity of a metal depends upona) heat treatmentb) alloy in the materialc) tensile strength/hardnessd) all are correct

49. VHP is used fora) short distance communicationb) in broad castingc) long distance communicationd) point to point microwave

50. Output is zero when input is 1 or both inputs are 1, the gate isa) AND gateb) NAND gatec) NOR gated) OR gate

51. For given figure, which is correct a) 0,0,1 b) 1,0,1 c) 1,1,0 d) 1,0,0

52. Batteries are connect in seriesa) total current is equal to the sum of the individual currentb) total voltage is equal to the sum of the individual voltagec) both a & bd) none

53. When three individual resistance are connected in parallel to each other which of the following is correcta) R = R1+R2+R3 b) 1/R = 1/R1 + 1/R2 + 1/R3

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ABC 1

ANSWERS:

1. C 2. A 3. D 4. C 5. C

6. B 7. C 8. B 9. A 10. D

11. A, D 12. C 13. B 14. B 15. B

16. A 17. B 18. C, D 19. D 20. A

21. D 22. A 23. A 24. C 25. B

26. B 27. C 28. B 29. B 30. A

31. B 32. D 33. A, B 34. A 35. D

36. B 37. B 38. C 39. B 40. B

41. A 42. A 43. D 44. A 45. D

46. B 47. C 48. A,B,D 49. A,C 50. C

51. B 52. B 53. B

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PAPER-II (Oct-2002)

1. Ohm’s Law does not holds fora) diodeb) mercuryc) P-N emulsiond) a & c both

2. Speed of motor increases, when load decreases, current decreases because ofa) frictional loss b/w motor moving partsb) frictional loss b/w field winding and other partsc) induced back emf increasesd) none

3. During inspection after swaging if it is found thata) shank dia is too large that means it is overswagedb) shank dia is too small that means it is overswaged it should be rejectedc) shank dia too small it means underswagedd) shank dia is too large it means underswaged and it should be rejected

4. Flab tab isa) balance tabb) trim tabc) servo tabd) none

5. Geiger counter is useda) to check the condition of a/c after heave landingb) to check the condition of a/c after flight through turbulencec) to check penetration of a/c by ultraviolet raysd) none

6. Lift depends ona) wing areab) wing shapec) square of velocity and density of aird) all of above

7. Mark the correct statementsa) lateral leveling in heavy airplane is more criticalb) leveling lateral point always on longitudinal axisc) leveling is always done in longitudinal axisd) none

8. Which of the epoxy resin is fire resistanta) DGEBAb) Flexiblec) Telogenetedd) Cyclo aliphatic

9. Marking of fluid line is given bya) color and geometrical shapeb) show the function and direction of fluid flowc) color and wardsd) all of above

10. Mark the correct statementa) carbon graphite has more compressive strength

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b) Kevlar graphite has more compressive strengthc) Carbon graphite less more tensile strength than Kevlard) Carbon graphite has low compressive strength\

11. Identify the figurea) lead & zincb) rubber

12. Stress corrosion is likely to occur isa) Al b) Mg c) Stainless steel d) Al & Stainless steel

13. Counter sinking is the operation ofa) producing an angular surface at the end of holeb) made in many diameter sizes and anglesc) making screws and bolt to flush with the surfaced) all

14. Shear nut thickness depends ona) as per the dia of nutb) hall of the usual nutc) as per the location of nutd) none

15. When re-torquing is required for a nuta) relightened the nut w/o backing off the nutb) relighten the nut with backing of one turn of nutc) relighten the nut with backing of two turn of nutd) never re tighten the nut

16. Which fire extinguisher is best for electrical firesa) waterb) CO2c) Foam d) All

17. In a transformer is primary frequency changes from 50Hz to 60Hz, keep the pick voltage constant then frequencya) increases in secondary by ratio 60/50b) decreases in secondary by ratio 50/60c) both 1 & 2d) none

18. While riveting hole center can be marked bya) center punchb) templatec) hole finder

19. When in a/c is required, embossing, etching and marking then electrical etching done bya) electrical etching pencil if applied lightlyb) electrical etching pencil but only for CRSc) electrical etching pencil is prohibited in a/cd) both 2 & 3

20. No of threads per inch can be checked bya) scaleb) screw pitch gagec) center gaged) all

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21. In oxy-acetylene welding to extinguish the flamea) first close O2 then acctyleneb) first close acctylent the O2 c) close both at a timed) none

22. Hydrogen gas emits in the batterya) during all fame in lead acid battery servicingb) in Ni-Cad battery at the end of chargingc) when battery is overchargedd) both 1 & 2

23. When coil of wire is placed horizontal to the earth surface, and a bar magnet dropped from the topa) fall with acceleration equal to ‘g’b) fall with acceleration less than ‘g’

24. For reaming hole should be undersizeda) ‘.200’ to ‘.500’ undersizedb) ‘003’ to ‘.007’ undersizedc) undersizedd) none

25. In ATA-100 specification of cable, electrical wire are designated bya) as prefix and suffixb) at the endc) in the middled) none

26. (1010101)²a) (85)10 b) (58)10 c) (64)10 d) none

27. Die is made used fora) cutting internal threadsb) cutting external threadsc) as in 2. made of steel, hardened and temperedd) as in 1 and made of steel

28. In fluorescent insp. Defect show asa) green in black lightb) red stainc) green in white lightd) blue

29. X-ray equipments are rated bya) current b) voltagec) power d) none

30. If size is not marked on drilla) it can be find by sharpening drill gageb) by center gagec) found by drill size gage-no of left, fraction on rightd) found by drill size gage-no of right, fraction left

31. Every third tooth of I lacksaw is made straighta) for sawing clearanceb) rakerc) repsawd) none

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32. Cotler pin for castellected nut is made ofa) Steelb) Cadmium plated low carbon steelc) Stainless steeld) Carbon steel

33. Vent plug of Bi-cad battery should be cleaned bya) de-mineralised waterb) distilled waterc) warm water and distilled waterd) detergent

34. To improve tensile strength, durability, shock resistance Mg. casting are normallya) SITTb) PITTc) Annealingd) None

35. A magnetic force always exert ona) a charged particleb) a uncharged particlec) charged particle parallel to magnetic flux

36. Grub screw is used fora) for locking threaded fastenersb) by solderingc) by peeningd) all

37. Bearing strength is the force resist thea) stretching & lengtheningb) slidingc) all the point of tearingd) none

38. In square threada) depth & width and space is equalb) strongc) all

39. O-ring can be checked bya) 4X magnificationb) by rolling the ring on a dowel-inner dia, can be checkedc) by rolling the ring on insp. Cone inner dia can be checkedd) all

40. Metalizing is the process ofa) rolling pure al, layer on al, alloy surfaceb) Ni. And cad plating on steelc) By spraying Ni, Cad, on steel with oxy-accetylene torchd) All

41. Hollow propeller thickness can be checked bya) eddy current inspb) eddy current by opening itc) UFD and can be also detect detaminationd) None

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42. Eddy current inspection is aa) Insp. for sub surface defects onlyb) Insp. for surface defects onlyc) Insp. by comparative testd) Open defects

43. Which of the following are universal gatea) NAND & ANDb) NOR & ORc) NAND & NORd) None

44. Combination set can be used asa) vernier caliperb) depth gauge, height gage, normal trisqure & scriberc) micrometerd) all

45. What is the speed ‘B’ geara) 200 rpmb) 600 rpmc) 300 rpmd) 166.3 rpm

46. When a component exceed the alert valuea) it should be rejected before the flightb) it should continue in flightc) it can replace in flight or 10 hrs which is earlierd) none

47. Mark the correct statementa) brinell hardness is the dia of ballb) lesser the rock well No. softer the materialc) more the Rockwell No. softer the materiald) none

48. Mark the correct statementa) thrust bearing can take radial loadb) radial bearing are used in gears, shaft etcc) roller bearing can take less radial loadd) all

49. Alert value for a componenta) recalculated at every 3 yearsb) recalculated at every 1 monthc) recalculated if it found unreliabled) a in 3 & it should be less than original alert value

50. When the time b/w soaking and quenching increasesa) hardness increasesb) softer the materialc) –d) –

51. In 1 to ten major data, the structure control of compa) sequence b) selectionc) a & repeatationd) b & repeatation

52. In P.N.P transistor holes diffuse from pregion to N regionable of of 203

a) higher level of energyb) thrillisionc) higher concentration of holes in pregiond) none

53. Chemically transfer of metal from one to another is done toa) corrosion resistanceb) build up c) resistance to tarnishd) all

54. Mark the correct statementa) tubing size and specification stamped on itb) small tubing by color code and markingc) both a & bd) none

55. ANI2115 – indicatesa) dia 3/5 and head is not drilledb) dia 6/8 and head is not drilledc) dia 6/8 and head is drilledd) dia 6/8 head and shank is drilled

56. Engine tires once ina) one Rev. Of crankshaftb) two Rev. of crankshaftc) 360° Rev. of crankshaftd) none of the above

57. Mark the correct statement:a) The thickness of the laminate and depth of discontinuity does not impose any problem in ‘C’ scan methodb) The pulse feathers of acoustic emission is analyzed to detect microscopic defect in acoustic emission methodc) Thermoscopy is most difficult method since it require material with high thermal conductivityd) All of the above

58. Mark the correct statement:a) On a/c with a steer able nose wheel, the locking scissors are set to full swivel for towing b) Tail wheel a/c should always towed backwardc) Release all the hydraulic charge before towingd) All of the above

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SUBJECTIVE QUESTIONS:

1. a) Orthographic projection N.D. BHATT page.no.470 diagram [fig. 20-36] b) How many flating are used in a/c plumbling explain tham.

2. a) What is the purpose of circuit breakers & lines? What is the property of fuse? b) What is the purpose of self locking nut? Describe any three types of self locking nut. c) What are the chemical treatment applicable for Aluminium.

3. a) What are constant voltage & current charging method? Why they are used? b) Write down truth table for NAND & NOR gates along with a neat sketch? Why they are called universal gates. c) What are the methods to control fuel contamination.

4. a) What is corrosion? Describe its control and types. b) What are the inspections to be carried out on turnbuckle & what is the precautioduring turnbuckle installation? c) Describe various types of calipers. d) What are the different types of turbine engines used in a/c.

5. a) What do you mean by impendance. Calculate the impendance of the given circuit and current flow in the given circuit.

60 Hz115 V

b) What are the six special inspection to be carried out on airframe as well as engine. c) Show with a neat diagram, flexible, extraflexible and non flexible cables.

6. a) Name the various parts of the micrometer & calculate its least count in inch. b) What is the angle of attack and what are its effects on lift and drag c) Name the various instruments used for checking the performance of piston engine. d)Describe the principle of NDT by ECI.

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C 5 micro farad

ANSWERS:

1. D 2. C 3. B 4. D 5. D

6. D 7. A 8. C 9. D 10. A

11. A 12. D 13.D 14. D 15. A

16. B 17. A 18. A 19. C 20. D

21. B 22. D 23. B 24. B 25. D

26. A 27. C 28. A 29. B 30. D

31. B 32. B, C 33. B 34. A 35. A

36. D 37. D 38. D 39.D 40. C

41. C 42. A,B,C 43. C 44. C 45. D

46. A,B 47. B 48. B 49. D 50. C

51. - 52. C 53. D 54. C 55. D

56. B 57. D 58. A

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JUNE – 2002

1. Color of the fire, protection fluid line isa) red b) brown c) green d) brown and orange

2. A/c bolts are manufactured with alwaysa) class 1 fitb) class 2 fitc) class 3 fitd) class 4 fit

3. Which of the following precision instrument is sued for tightening the nut on bolt with proper torque isa) socket wrenchb) torque wrenchc) ratchet wrench

4. For repairing the oversize hole with sleeve, the hole must be drilled oversized bya) 3/16 b) 1/32 c) 1/64 d) 3/64

5. 7 X 19 size of cable indicatesa) 7 wires of 19 strandb) 7 strand of 13 wirec) 7 strand of 19 strandd) none

6. Clevis bolt used in fork end of cable fittinga) AN-CRS boltsb) NAS-CRS boltsc) –d) –

7. Intergranular corrosion is normally caused bya) internal stressesb) improper heat treatmentc) electrolyted) all of the above

8. Spilled electrolyte of lead-acid battery is neutralized bya) ammoniab) baking sodac) vinegard) both a & b

9. What type of battery charger is recommended for final charging of a Ni-cad batterya) constant current chargerb) constant voltage chargerc) both a & bd) any one of the above

10. Corrosion product in magnesium is removed bya) steel wire brushb) carborundum abrasivec) stiff hog bristle brushd) all of the above

11. Purpose of heat treatment of titanium isa) thermal hardening to improve strengthb) annealing for subsequent working

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c) relieve stressesd) all of the above

12. The process capacity of a computer is determined bya) MHZ b) KHZ c) RAM d) frequently

13. Hardness testing method of steel isa) brinell or barcolb) barcol or Rockwellc) brinell or Rockwelld) none of the above

14. T6 indicatesa) artificially aged onlyb) SHT and cold workedc) SHT and their artificially agedd) Solution heat treated

15. Mental fatigue of human is caused bya) long period of dutyb) emotional stressc) noised) all of the above

16. A micro switch will open or close a circuit with the movement ofa) 1/16 or lessb) 1/16 or morec) both d) none

17. Range of ammeter is extended by connecting a resistor with moving coil ina) parallel b) seriesc) any one of the aboved) none

18. Capacitance of a capacitor is directly proportional toa) plate area and distance is directly proportional tob) plate area and inversely proportional to distance between the platesc) distance between the plates and inversely proportional to plate aread) both a & b

19. Calculate the power when E=28volts and R=10a) 78.4 watts b) 7.84 watts c) 2.8 watts d) 280 watts

20. If Z is impedance, r is internal resistance and R is external resistance, thena) Z=R + r b) Z² = R² + r² c) Z = R² + r² d) none

21. Unit of radioactivity isa) Rutherford scaneb) Bequirelc) Both a & bd) None

22. Mark the correct statementa) straight fluted, reamer prevents chatteringb) spiral fluted reamer is tapered to acid in startingc) bottoming reamer is tapered to aid in startingd) none of the above

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23. (110)2 is the binary of decimala) 3 b) 5 c) 6 d) 7

24. Instrument panels are usually shock mounted to absorb----shock a) low frequency, high amplitudeb) high frequency, high amplitudec) low frequency, low amplituded) high frequency, low amplitude

25. Piston engine is depends ona) charle’s lawb) brayton cyclec) boyle’s lawd) both a & c

26. End of steel bar sometimes painted in various colors and color combination as a mean of identifying different grade of steela) solid colors identify the alloy and strips identify the carbon contentsb) strips identify the alloy and solid colors identify the carbon contentc) both a & bd) none of the above

27. Which gage is used to measure the backlash between gears a) filler gageb) screw pitch gagec) fillet gaged) DTI

28. Accuracy of a finished screw thread is determined bya) screw pitch gaugeb) ring thread gaugec) thread gauged) plug thread gauge

29. Highest size of drill isa) No. 80 (0.0135)b) 3/16 (0.1875)c) 3.75mm (0.1475)d) E (0.2500)

30. Schematic diagrams are used mainly fora) a/c maintenance and repairb) trouble shootingc) installation of partsd) all of the above

31. Mark the correct statementa) turboprop engine requires lengthy runway than piston engine of same powerb) turbojet has more weight than piston engine of same powerc) turbofan required short runway as compare to turbojetd) all of the above

32. In towing the a/c (light) mark the correct statementa) all tail wheel a/c towing towards backwardb) all nose wheel a/c towing towards backwardc) if steerable nose wheel a/c, locking scissors are set to full swivel positiond) none of the above

33. While starting the piston engine, which type of fire extinguisher is permitted of 203

a) Water and water based agentb) Co2, 516 capacityc) Dry chemicald) CC14 (halon gas)

34. Which core material gives deflection in compositea) honey combb) synthetic resinc) foam d) all

35. Paralketone used on a) cable b) iron c) conduit d) none

36. Interpretation analysis of defect in PFD indicatesa) extent of stainingb) –c) –d) –

37. In PFD, when used fluorascent, material color of defective part and sound part isa) brilliant yellow-green and blue violetb) brilliant yellow-green and bright redc) bright red and blue violetd) none of the above

38. ATA-100 code of hydraulic power, pneumatic fire and engine oil isa) 36,26,79,83b) 29,36,26,78c) 29,36,26,79d) 79,36,29,26

39. ATA-37 indicatesa) vaccum / pressureb) water / wastec) pneumaticd) none of the above

40. Needle bearing is used where movement isa) oscillatory rather than rotaryb) rotary rather than oscillatoryc) both an & bd) none of the above

41. Embrittlement is steel is reduced bya) heating the steel at 150°-200°C (tempering)b) increasing the carbon percentagec) by annealingd) none

42. Pressure of gas on acetylene welding is depend upon a) area of welding surfaceb) type of material being weldedc) as the welder will want d) none

43. Mark the correct statement regarding monela) it can not hardened by heat treatmentb) it can be hardened by heat treatmentc) either a & b

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d) none of the above

44. Mark the incorrect statementa) ultrasonic inspection_______________ piezo electric effect (radiography)b) MPI__________ skin effect (ultrasonic)c) Eddy current____________ current acceptanced) PED________________ capillary action

45. If no marking of drill, identification of drill can be measured by drill gauge havinga) fraction on right and no. on leftb) fraction on left and no on rightc) both a & bd) none of the above

46. Dia of rivet isa) 2 times of thickness of sheetsb) 3 times of thickness of thickest sheetc) 3 times of thickness of joint sheetsd) equal to grip length

47. Extension tap is used fora) cut full threads in blind hole to bottomb) cut the thread in deep holec) thread cuts on long shaftd) all of the above

48. Lift and drag depends upona) more cambered area of upper side and less of lower side of wingb) more cambered area of lower side and less on upper sidec) both a & bd) nonee) angle of attackf) speed of aircraft

49. Gear rack is used fora) change rotary motion to reciprocating motionb) change reciprocating motion to rotary motionc) transmit motion to parallel with itd) none of the above

50. Indication of Class-B fire isa) Red b) Yellow c) Green d) Brown

51. Color of extruded bar of aluminium alloy in 5 inches isa) red marking near the end of each lengthb) blue marking near the end of each lengthc) stamp of blue and white colord) none of the above

52. What size of the hole should be bored before cutting a 2.5” internal acme thread having 3 thread per incha) 2.5” b) 2.1667” c) 3.5” d) 2.75”

53. Mark the correct statementa) light a/c is tied down after every flightb) light a/c is not require tied downc) only when strong air being to flow then tie downd) both a & c

54. Dis-integrator is used toa) making hole in conductive metalb) making hole in non-conductive jobc) making hole clearly and fairlyd) both a & c are correct

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ANSWERS:

1. B 2. C 3. B 4. C 5. B

6. A 7. B 8. B, D 9. A 10. C

11. D 12. D 13.C 14. B 15. D

16. A 17. A 18. B 19. A 20. A

21. C 22. B 23. C 24. A 25. D

26. A 27. D 28. B 29. D 30. B

31. C 32. C 33. B 34. A 35. A

36. - 37. A 38. C 39. A 40. A

41. A 42. B 43. A 44. - 45. B

46. B 47. B 48. A,E,F 49. A 50. A

51. A 52. B 53. A 54. D

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PAPER-III (JUNE-2003)

1. Red brass is useda) for fuel and oil line fittingsb) as in (a) and also called bronzec) as in (b) and has poor casting and forming qualityd) none

2. Nickel in steel increasesa) hardnessb) yield strengthc) elastic limitd) all of the above

3. Geiger counter is used toa) measure the radioactive contamination of a/c flying above statosphereb) check the condition of a/c after heavy landingc) check the penetration of a/c by ultraviolet rays above statosphere d) none of the above

4. Stalling angle critical angle of attack is thea) maximum lift angleb) minimum lift anglec) as in (a) and at which separation of airflow takes from upper surface of wingd) as in (b) and at which separation of airflow takes from lower surface of wing

5. Angle of ACME thread isa) 45° b) 38° c) 12° d) 29°

6. Al-alloy rivets can be heat treateda) maximum 5 timesb) maximum 15 timesc) infinite timesd) none

7. The type of compressor used in air cycle cooling machine isa) axial compressorb) inward flow compressorc) outward flow compressord) none

8. Mark the correct statementa) Al-alloy bolts of dia less than ¼mm are not used in primary structureb) All Al-alloy nuts and bolts are used where frequent removal is requiredc) Both a & b are correctd) None of the above

9. Mark the correct statementa) lap joint is best for oxy-acetylene weldingb) single lap joint is resistance to shearingc) single lap joint is resistance to bendingd) all of the above are wrong

10. Aircraft structural CRS is welded bya) butt weldingb) spot welding & sea weldingc) butt and spot weldingd) spot welding

11. Precision wire wound resistors are wound with of 203

a) carbonb) copperc) magnanind) all of the above

12. Corrosion of titanium and its alloys area) difficult to detectb) easy to detectc) as in (a) & increase with high temperature and saltd) as in (b) & removed with Al-grid or Al-polished

13. If acid is spilled over skin from an a/c battery then it cleaned witha) waterb) water & boric acidc) water & bicarbonate of sodad) all

14. Ni-cad battery is rapidly charged witha) constant current and variable voltageb) constant voltage and variable currentc) variable voltage and variable currentd) both a & b

15. Indication of corrosion ona) Al and Mg as etching and pittingb) Copper as greenish filmc) Steel as white marksd) Both a & b

16. Which non-ferrous metal can be case-hardened a) Ni b) Ti c) Cu d) Al

17. Jo-bolt isa) externally threaded two piece rivetb) externally threaded three piece rivetc) internally threaded three piece rivetd) can replace general bolts in compression to their strength

18. Jum buckle isa) for minor adjustment in cable length and cable tensionb) has matching left and right hand threadsc) has internally threaded ends and externally threaded end terminalsd) all of the above

19. Extrusion is used for makinga) channelsb) anglec) T-sectiond) All

20. Generator frequency depends ona) no of polesb) RPMc) Both a & bd) None

21. For a battery to have high ampere hour capacity and high terminals voltagea) low internal resistanceb) high internal resistancec) does not depend on internal resistance

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d) none

22. Plug gage is used fora) checking the internal dia of cylindrical shaftb) checking the size of plug needed for blankingc) checking the accuracy of holesd) all of the above

23. A bolt should be installeda) upward and downwardb) upward & forwardc) downward & forwardd) down ward & rearward

24. In a PN function diode, holes move from P-region to N-region because ofa) diffusionb) pressure differencec) higher concentration of holes in P-regiond) electrons in N-region attracts holes from P-region

25. Every third tooth is made straight fora) sawing clearanceb) racker and for cleaningc) rap sawd) all of the above

26. Shunt ohmmeter measuresa) low resistanceb) high resistancec) precision resistanced) infinite resistance

27. Mark the correct statement for transformera) mutual induction is working principleb) output voltage depends on transformation ratio/turn ratioc) –d) all of the above

28. For constant voltage generator used isa) seriesb) shuntc) both a & bd) none

29. After heat treatment tempering is done toa) reduce brittleness and ductilityb) increase brittleness and ductilityc) increase hardness and strengthd) increase hardness only

30. Pot life and shelf lifea) pot life is related to mixed resin mixture while shelf life is related to resin and hardened individuallyb) a) if catalyst is mixed in less amount then it will increase pot life but reducing curing propertiesc) both a & bd) none

31. Octal no. of 189 isa) 235 b) 237 c) 265 d) 275

32. Internal wrenching bolt takesa) shear loadb) tension load

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c) both shear & tension loadd) none

33. Clevis bolt is used fora) shear loadb) tension loadc) both shear & tension loadd) none

34. 10 KB-105 rivet hasa) flat headb) countersunk headc) as in (a) & keyd) as in (b) and key

35. 10 KB-107 rivet hasa) flat headb) counter sunk headc) as in (a) and with key and close endd) as in(b) and with key and close end

36. In Bristol modified method, defect occurs asa) white line (thin)b) green line on darkc) red line none of the above

37. In oil and chalk process, defect occurs ofa) dark gray line on light surfaceb) dark line on red back groundc) green line on dark backgroundd) none of the above

38. Intergranular corrosiona) occurs along grain boundariesb) causes exploitation when it becomes severec) as in (a) and (b) and detected by UFDd) as in © and detected EFD

39. Porosity in steel castings is detected bya) MPIb) As in(a) but DPI is more efficientc) Both are equally efficientd) None

40. Scuttered acts in MPI indicatesa) fine porosity and pittingb) welding cracksc) tight crackd) laps

41. Variable canvery pump is used wherea) output does not change with requirement of engineb) output varied as per engine requirementc) as in (a) and fitted with no valved) as in © and fitted with compensated valve for automatic adjusted

42. Ventral providesa) longitudinal stabilityb) longitudinal and lateral stabilityc) lateral stability

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43. Hydraulic system is based ona) charle’s lawb) pascal’s lawc) boyle’s lawd) newton’s law

44. Essential calculating power is area) force ???b) distance traveledc) time doing workd) all of the above

45. 1 HP is usual to a) 735 electric wattsb) 746 electrical wattsc) both a & bd) none

46. Brinell hardness testera) uses ??? ball penetratorb) as in (a) and measure depth of impressionc) as in (b) and measure dia of impressiond) none of the above

47. Electric slating is the process ofa) provide corrosion resistance surfaceb) provide good surface for further platingc) for ???d) all the above

48. Transferred metal by chemical action over a surface fora) provide corrosion resistance surfaceb) provide base for further platingc) forward upd) all the above

49. Acetylene gas isa) colorlessb) as in (a) and if stored above 25 psi it becomes highly unstablec) as in (b) and produced by reaction of calcium carbide with waterd) as in (a) and produces a yellow colored flame and smoky flame

50. Which fire extinguisher is best for electrical firea) carbon tetrachlorideb) foamc) waterd) CO2

51. While riveting, center hole can be located bya) center pitchb) templatec) hole finderd) all of the above

52. In ATA-100 specification of cable, electrical wire no and letters are marked asa) prefix and suffixb) side by sidec) in middled) at the end

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53. Cotter pin for castlellated nut is made ofa) steel/CRSb) cadmium plated low carbonc) stainless steeld) both b & c

54. X-ray equipments are rated bya) ampereb) KVc) Wattd) None

55. When a component exceeds the alert valuea) it should be subjected before flightb) it should continue in flight and corrective action takenc) it can be replaced in night or at 10 hrs whichever is earlierd) none of the above

56. Alert value for a component isa) recalculated at every 3 yearsb) recalculated at every 1 monthc) recalculated if it found unreliabled) as in © and it should be less than original alert value

57. When the time between soaking and quenching increases, then a) hardness increasesb) softer the metalc) re-precipitation takes placed) tensile strength increases

58. O-ring can be checked bya) 4-times magnificationb) rolling the ring on a dowell and inner dia can be checkedc) rolling the ring on inspection cone & inner dia can be checkedd) all of the above

59. Metalling is a process ofa) rolling pure Al-alloy on Al-alloy surfaceb) Ni and cd plating on steelc) By spraying Ni, cr on steel with oxy-acetylene flamed) All of the above

60. Which of the following are universal gatesa) NAND & ANDb) NOR & ORc) NAND & NORd) NONE

61. An 12 H5 indicatesa) dia 3/5 and head is not drilledb) dia 6/8 and head is not drilledc) dia 6/8 and head is drilledd) dia 6/8 and shank & head is drilled

62. Engine fires once ina) one revolution of crankshaftb) two revolution of crankshaftc) 360° revolution of crankshaftd) none of the above

63. Mark the correct statementa) On a/c with steerable nose wheel, the locking scissors are set to full swivel for towing

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b) Tail wheel a/c should always be towed backwardc) Release all the hydraulic charge before towingd) All of the above

64. Grub-screw is used fora) locking threaded fastenersb) by soldering it is lockedc) locked by peeningd) both a & c

65. Bearing strength is the force that resist thea) stretching and lengtheningb) slidingc) at the point of tearingd) none

66. Magnetic force always acts ona) charged particleb) uncharged particlec) charged particle parallel to magnetic fluxd) none

67. Hydrogen gas is emits in the batterya) during all times in lead acid battery servicingb) in Ni-cd battery, at the end of chargingc) when battery is overchargedd) both a,b,c

68. Ohm’s law does not hold fora) diodeb) NPN-transistor c) Hgd) Both a & b

69. Speed of motor increase when load decrease current decrease because ofa) frictional loss between motor’s moving partsb) frictional loss between field winding and other partsc) induced back emf increasesd) none

70. Marking of fluid line is given bya) color and geometrical shapeb) color and wordsc) show the function and direction of fluid flowd) all of the above

71. Mark the correct statementa) carbon graphite has more compressive strength than Kevlarb) Kevlar has more compressive strength than carbon graphitec) Carbon graphite has more tensile strength than Kevlard) All of the above

72. Stress corrosion is likely to occurs ina) aluminiumb) Mgc) CRSd) Al and stainless steel

73. When re-torqueing is required for a ???a) re-tighten the nut without backing off the nutb) re-tighten the nut with backing-off the nut one turnc) re-tighten the nut with backing off by two turn

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d) never re-tighten the nut

74. When in a/c. it is required embossing, etching and marking, then electrical etching is done bya) electrical etching pencil, if applied lightlyb) electrical etching pencil but only for CRSc) electrical etching pencil is prohibited in a/cd) both b & c

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ANSWERS:

1. B 2. D 3. A 4. C 5. D

6. B 7. C 8. A, D 9. D 10. D

11. C 12. C 13. C 14. B 15. D

16. B 17. C 18. D 19. D 20. C

21. A 22. D 23. B 24. C 25. B

26. A 27. D 28. D 29. A 30. A

31. D 32. C 33. A 34. C 35. D

36. A 37. A 38. D 39. B 40. A

41. D 42. C 43. B 44. D 45. B,C

46. C 47. D 48. D 49.D 50. D

51. D 52. B 53. D 54. B 55. B

56. D 57. C 58. D 59. C 60. C

61. D 62. B 63. A 64. D 65. D

66. A 67. D 68. D 69. C 70. D

71. A 72. D 73. A 74. C

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PAPER – II (JUNE – 1998)

1. For commercial annealing, cooling is done ina) furnanceb) airc) micad) both a & b

2. Cyniding of low carbon steel is quenched ina) oilb) brinec) waterd) both a & b (all)

3. How long piece of steel is left in a furnace for soaking a) for long enough to ensure a good even heat throughoutb) for 2 hours for per cubic inch of piecec) one hour for each square inch of cross section aread) both a & c

4. Seak often forms on the surface of the metal and dirt blocked on it, cleaning of seaks and dirt from heat threated part is done by

a) steel wire brushb) sand blastingc) scapd) all

5. In Rockwell hardness testinga) softer the piece of metal, the deeper will be the impression under given loadb) the hardness is indicated on a dial gage graduated in the B & C scalec) for non-ferrous metal, the steel ball should be used and hardness no read on B scaled) all the above

6. Flame heating is done fora) when hardness is required only for a limited depth of the materialb) for small partc) both a & bd) none

7. The heat of the furnace can be controlled or regulated bya) be watching the color of the furnaceb) barometerc) thermo meterd) all

8. Fatigue crack is detected bya) ultrasonicb) radiographyc) body currentd) all

9. End of the steel bars are sometime painted in various a) color and color combination as a means of identifying the carbon constantb) strips identifying the alloy and solid color identifying the carbon

10. To prevent solder from running away from the surface to be jointeda) flux is usedb) temperature is maintainedc) clay is commonly used to surround the area to be jointedd) all

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11. Braze welding isa) known as force welding (bronze welding)b) a welding in which base metal is not fusec) a combination of brazing and weldingd) all

12. Which statement is correcta) low temperature brazing is also known as hard soldering or silver solderingb) silver welding has equal strength of materialc) after silver soldering, further heat treatment is requiredd) both a & b

13. Unit of radio active material isa) curies and ratherford scane b) barcol (bequerel)c) both a & bd) none

14. Radioactive decay is measured in tennis ofa) curies b) half lifec) both a & bd) none

15. Which does not passage in electromagnetic radiationa) X-rayb) Light c) Infrared rayd) Thermal

16. Density of radioactive mean isa) sharpness of image detail on a radiographb) degree of blackening of a radio graphc) relative brightness of two adjacent aread) both a & c

17. Welding decay in stainless steel is reduced bya) stainless steel containing titaniumb) low temperaturec) by reducing heating timed) both a & b

18. The term used on worm geara) threat b) threat radius c) threat diameter d) all

19. In flour sent methoda) if wet developer is applied, it must be driedb) if dry developer is applied, it must not be driedc) dry for long periodd) all are wrong

20. Telescoping gagea) is used for inside measurementb) range from ½” to 6”c) range from ½” to 1”d) both a & b

21. Hole gage is used fora) measuring grooves and slots

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b) measuring small holec) both a & bd) none

22. The size of the flat cold chisel is determined bya) width of the cutting edgeb) length of the cutting edgec) length of chiseld) all

23. Which statement is correcta) straight fluted reamer is less tendency the chatterb) spiral type are tapered for the short distance back of end to and in startingc) bottoming reamer have tapers end and are used to short holed) both a & b

24. Thread may be produced bya) on a leth with specially shaped cutting toolb) on spirel machine using rotary cutterc) by rolling on spiral machine using diesd) all

25. Needle file area) knurid on both sideb) knurid on one side onlyc) use on slat by diameter and watch makerd) both a & c

26. Block spanner is used ona) round nut having series of knotches or slots cuts on its sideb) hexagenol nut with slotsc) ??? nut with slotsd) all

27. Meshing gear have samea) teethb) pitch no. of some sizec) dedendom d) all

28. Vernier scale is used ona) microscopeb) boroscopec) spheroscoped) all

29. Which statement is correcta) fibre glass is weight more and have less strength than compare to other composite material

30. Fibre glass isa) also known as E-glass or electric glassb) E-glass or borosilicate glassc) Both a & bd) None

31. Welf threads area) detection for the warp detectionb) detection is 45° towarpc) bias

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d) perpendicular to warp

32. Which statement is correcta) force is exerted on charged particleb) force is applied on charged particle moving along the magnetic field

33. Strength of composite depending upona) type of fiber (bonding material)b) process of manufacturec) heat treatmentd) all

34. When two sphere of same mass, one id +ve charged and other is –ve charged, then new mass willa) change b) unchanged

35. If the conductor is of 4 and it stretched to twice of its length, then its resistance isa) 1 b) 8 c) 12 d) 16

36. A and B are big and small battery, having same emf. Internal resistance of battery A isa) less than Bb) greater than Bc) equal to Bd) unaffected

37. Which statement is correcta) battery terminal voltage is equal to battery emfb) battery terminal voltage is less than battery emfc) battery terminal voltage is more than battery emfd) depends on direction of current flow

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ANSWERS:

1. C 2. D 3. D 4. D 5. D

6. A 7. B 8. D 9. A 10. C

11. D 12. D 13. C 14. B 15. A

16. B 17. A 18. D 19. D 20. B, D

21. C 22. A 23. B 24. D 25. D

26. A 27. B 28. D 29. A 30. C

31. D 32. B 33. D 34. B 35. B, D

36. A 37. B

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MARCH – 1994

1. In a spot welding a typical defect isa) porosityb) crackc) irregular shaped) both b & c

2. In oxyacetelene welding while shutting off the flamea) oxygen is shut out firstb) acytelene is shut off firstc) both are shut off simultaneously

3. Oxyacetelene flame with equal volume of oxygen and acytelene gives the types of flame as showna) carbonizingb) oxidizingc) neutrald) there is no such flame

4. The silver solder metal melts ata) 200-400 degree centb) 300-600 degree centc) 1000-2000 degree centd) 850-1200 degree cent

5. The core of reinforce polymer thermoplastic is filled asa) metalb) aluminiumc) fibre glass and plastic resind) all of the above

6. Synthetic thermoplastica) when heated becomes softb) when heated becomes hardc) when cools become hardd) both a & c are correct

7. A crack may be repaired bya) out weldingb) spot weldingc) lap welding

8. In dye penetrant test the indication shown indicatesa) porosityb) tight crack

9. The wood cross section shows the cuttinga) rift sawingb) tangential sawingc) angular d) a & b are correct

10. Corrosion on the surface of aluminium alloy is indication on the form of a) metal bulgingb) white powdery deposits

11. Fillet weld is a weld whicha) joins the surfaces which are perpendicular to each otherb) joins the two parts in the same plane by clampingc) joins the two parts in the same plane by overlapping

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d) both a & b are correct

12. Radiography NDT testa) low wave length and high penetrationb) high wave length and low penetration’c) invisible rayd) both a & c

13. To obtain clean and good welda) weld may be filled evenly and slowlyb) filed with solder and brazing metalc) none of the above

14. The brazing the flame to be used isa) neutral flameb) oxidizing flamec) slightly carbonizingd) any flame

15. Rockwell hardness testera) measures resistance to penetrationb) measures diameter of indentionc) measures depth of penetrationd) both a & c are correct

16. Galvanic corrosion occurs betweena) dissimilar metals joined without insulation between themb) al-alloy structured assembled with steel screwc) both a & c are correct

17. Aviation snip is used for cuttinga) thick metal sheetb) thick stainless sheetc) heat treated Al-alloy and stainless steel sheetd) all types of thick sheet

18. Headless grab screws are installed bya) allen keyb) special type of ratchet spannerc) suitable screw driverd) special tool

19. In a micrometer in the main scale each cm divided into 10 equal parts and in circular scale, 9 division of main scale equals to 10 divisions of circular scale the least count of the macrometer is

a) 1mmb) 0.01 mmc) 0.01 cmd) 0.0001 mm

20. In a micrometer the smallest division on main scale is 0.5 mm. The vernier scale is divided into 25 division and it moves one division on the mainscale for complete rotation of the vernier scale then the least count of the micrometer is

a) 0.01mmb) 0.002cmc) 0.01cmd) 0.001mm

21. In pitot static system static vents are placed separately in a/c to reduceda) vaccum gaugeb) vaccum chamber

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c) micromanometerd) all

22. Altimeter in absence of manometer may be checksa) vaccum gaugeb) vaccum chamberc) micromanometerd) all

23. An altimeter hasa) stack of three evacuated bellowsb) stack of two evacuated bellowsc) barometric pressure setting provisiond) all

24. Identify the clevis bolt

25. In four digit N-alloy index system, no-2024, the first digit indicates_____a) the % of Al-addedb) the different alloy in this groupc) alloy groupd) copper is the major alloying element

26. Why it is considered good practice to normalize a part after weldinga) to relieve internal stresses developed within base metalb) to introduce a slight amount of carbon to improve the surface hardness of the weldc) to remove the surface scales formed during weldingd) all are correct

27. Select the characteristics of a good gas welda) the depth of penetration shall be sufficient to ensure fusion of filler rodb) the height of weld healed should be ⅛” above base metalc) the weld should taper off smoothly into base metald) these should be no oxide on the weld

28. Indicates single butt weldFigure

a) –b) –c) –d) –

29. Which tool can be used to measure the alignment of a rotor shaft or the place of rotation of diska) dial indicator (DTI)b) shaft gagec) protector d) all

30. The measurement reading on vernier scalea) 1.411”

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b) 1.436”c) 1.700”d) 1.456”

31. Side clearance of piston ring is measured bya) micrometerb) thickness gaugec) depth gauged) dial gauge

32. What tool is generally used to set a divider to an exact dimensiona) mechanic scaleb) surface gaugec) dial indicatord) all are correct

33. Which statement is correct regarding tie-down of small a/ca) manila rope has a tendency to stretch when it gets wetb) Nylon or Dacron rope is preferred to manila ropec) The a/c should be headed down wind in order to eliminate or minimize wing liftd) Leave the nose wheel or tail wheel unlocked

34. The color of 100ll fuel isa) –b) –c) –d) –

35. Flow of aviation fuel which passes greater antiknock quality than 100 octane, classifieda) according to the multiplies of leadb) by reference to normal neptanec) by performance numberd) none

36. A primary cause of intergranular corrosion is a) improper heat treatmentb) dissimilar metal contactc) improper application of heatd) none

37. Corrosion caused by galvanic action is result of a) excessive anodizationb) contact of two unlike metalsc) excessive etchingd) all

38. The internal surface of sealed structural steel tubing is best protected against corrosion bya) a coating of hot linseed oilb) evacuation of tubing before sealingc) a coating of Zn-chromate primerd) none

39. One way to obtain increased resistance to stress corrosion is obtained bya) releasing compressive stress on metalb) creating compressive stress on metalc) producing non-uniform deformation while cold workingd) all are correct

40. Which statement is correct regarding hand tapa) japer, plug, bottomingb) as in (a) & bottoming tap is used to cut thread at bottom

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41. Which maintenance record entry best describe the action taken by FAR when a 0.125” dent in a straight section of ½” Al-alloy tubing is found

a) dent is acceptable limit and repair not necessaryb) dented section removed and replaced with identical new tubing flared 45.c) Dent removed by drawing appropriate size bullet through the tubingd) Deffered to maintenance check

42. EMF is produced in generatora) Lenz’s lawb) Electromagnetic inductionc) Right hand fleming ruled) None

43. AN coupling used in Al tube ½ diametera) AN 818-5b) AN 818-2c) AN 818-8d) Any one

44. Roller bearing take more radial load than ball bearing of same size becausea) larger contact area

45. In brinell hardness testing, the thickness of material should not be less thana) 5 timesb) 10 times c) 20 timesd) 50 times

46. Which statement is correcta) swg 0 is smallb) swg 14 is thicker than swg 18c) swg 14 is smaller than swg 18d) none

47. Bottle jack is useda) to raise one wheel to remove brake unitb) to raise single wheelc) to raise single wheel to remove one brake unitd) all are correct

48. Liquid penetrant test is carried out ina) porous plasticb) nonferrous metalc) unpainted cleaned woodd) any one or all

49. Which statement is correct a) tank inserted into handle is knows as safe edgeb) when filling is done, use lubricantc) blade is made of steel and is not heat treatedd) none

50. Ohm’s law isa) IV b) VI c) IR d) VR

51. Flux used in soldering isa) chemically clean the metal by removing oxide filmb) increase strength

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52. Edge distance isa) 2 times the shank diameterb) 2 times the sheet thicknessc) 2 times of head diameterd) none

53. Which statement is correct regarding ASIa) pitot pressure is given inside capsuleb) static pressure is given outside the capsulec) measure differential pressured) all are correct

54. Which one is input devicea) keyboardb) moucec) telephone lined) all are correct

55. MODAM (Modulator – demodulator) used isa) a part of CPUb) a softwarec) input/output peripherald) operating system

56. When jacking the a/ca) a/c nose put to the windb) select hard and smooth surfacec) both a & bd) none

57. When defuelling is done on swept back wing a/c. best precaution isa) outboard tank drain firstb) fuselage tank drain firstc) inboard tank drain firstd) all tank drained together

58. When a/c fuelling with pressure fuelling, precaution takena) fuel nozzle pressure kept minimum to the fuel filterb) pressure should be adequatec) electric s/w on to indicate the fuel quantity on gauged) fuel nozzle inserted before grounding

59. Negative plate of Ni-cd battery is ofa) pure cadmiumb) nickel hydroxidec) cadmium hydroxided) none

60. Electrolyte used in lead acid batterya) KOHb) Dilute H2SO4c) Concentrated H2SO4d) none

61. Transistor used asa) voltage regulator/doublerb) rectifierc) amplifierd) all are correct

62. Convert 37 decimal into binarya) 100101 b) 111111 c) 101010 d) 110110

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63. How will you remove the screwa) by weldingb) drill the headc) both a & bd) none

64. Bevel gear is used toa) transmit single loadb) transmit heavy loadc) transmit motion at on angle tod) transmit motion between two parallel shaft

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ANSWERS:

1. D 2. B 3. C 4. A, B 5. C

6. D 7. A 8. A 9. B 10. B

11. A 12. B,D 13. A 14. A 15. D

16. C 17. C 18. A 19. - 20. –

21. C 22. C 23. D 24. C 25. D

26. A 27. C 28. D 29. A 30. –

31. B 32. A 33. B 34. - 35.C

36. A 37. B 38. A 39. B 40. B

41. C 42. B 43. C 44. - 45. B

46. B 47. D 48. B,C,D 49. D 50. A

51. A,B 52. A 53. D 54. D 55. C

56. C 57. A 58. B 59. C 60. B

61. C 62. A 63. B 64. C

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PAPER – II (JUNE-1998)

1. After cyaniding quenching is done ina) brineb) waterc) oild) both a & c

2. To stop solder from flowing normallya) clay is usedb) a flux is used

3. Hard soldering (silver soldering is low temperature brazing)a) is done at low temperature brazingb) produces strength equal to parent metalc) both a & bd) none

4. Flame is used to heat metal during heat treatment fora) small partsb) where furnace is not availablec) heat treatment requirement is not very exactingd) large parts and where a particular area is to be heated

5. Mark the correct statementa) detection welds in thicker material UFD is bestb) X-ray best for welds in sheetsc) Both a & bd) All

6. When flying along magnetic equator, dip will bea) increasedb) remain unchangedc) decreasedd) depend upon direction of flight

7. Identification of alloy is made of bya) alloy identified by color, content by stripesb) alloy by stripes and content by color

8. Heat treated parts having bake-dirt and scale can be cleaneda) wire brushb) scrapingc) sand blastingd) none

9. Pre & past treatment of cd-plating and ferros part depends ona) strength of partb) surface hardening and hard spotsc) corrosion resistance d) all

10. The soaking time varies asa) till alloy uniformally heatedb) 2 hrs/unit volumec) 1 hr/unit c.s. aread) none

11. Vernier scale is also used ina) microscope and spectrometer

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b) sextant and spectrometerc) both a & bd) none

12. In brazinga) post heat treatment may be carried to relieve stressesb) post heat treatment may not be carried to relieve stresses

13. Prepregs material isa) eleminate manual mixing and weighingb) must be stored in freezec) also made in unidirectionald) all are correct

14. Which statement is correcta) boron fibre is made by depositing boronb) tungsten and ceramic fibre in high heat applicationc) ceramic used in heat application, dissipating heat slowlyd) both a & b

15. Disbond and water in honeycomb and impect damage is detected bya) laser holographyb) ultrasonicc) visual inspectiond) none

16. In npn-transistor, arrow heat indicatesa) hole flowb) electron flowc) minority carrier flow from emitter to based) majority carrier flow from emitter to base

17. Which statement is correcta) weld in thick material can not be detected by ultrasonicb) weld in thin material can be detected by X-rayc) always detected by dye penetrantd) all above are correct

18. The opposition offered in AC circuit are calleda) impedence b) resistance c) inductance d) all

19. Which of the following is sued as voltage regulator device a) carbon pile voltage regulatorb) magnetic amplifier regulatorc) transistor regulatord) all are correct

20. Range of ammeter can be increased bya) connecting high resistance in parallelb) connecting high resistance in seriesc) connecting low resistance in paralleld) connecting low resistance in series

21. Amperemeter hasa) low resistance in seriesb) high resistance in seriesc) low resistance in parallel

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22. Transistor is biaseda) base and emitter forward biasedb) base and emitter reverce biased

23. In tetrode, the screw grid isa) always at positive potential and the voltage is less than plate voltage

24. In square threadsa) width, height and length are sameb) difficult to machinec) more strengthd) all are correct

25. In ATA-100 systems, 36 representsa) hydraulic system (29)b) oxygen system (32)c) pheumatic system (36)d) landing gear system (32)

26. Which of the statement is correct regarding bearing a) if corrosion is found on the outer surface, it should be rejectedb) bearing must be inspected periodically at least once in a yearc) shielded bearing is used be inspected for corrosiond) both b & c are correct

27. The diameter of the aluminium sheet increasea) as the gauge no increaseb) as the gauge no decreasec) remain constantd) varies from gauge to gauge

28. Piezo electricity is produceda) by the vibration of ceramicb) by the vibration of quartz, Rochelle salt and ceramicc) sound waves have no connection with thisd) all are wrong

29. Titanium can be identified bya) spark test (used for various metal & some time from ??b) moisturing and scratching with a pencilc) chemical testd) both a & b are correct

30. The heat resistance resin isa) epoxy (cyclo eliphatic resin)b) polyesterc) thermosetting plasticd) thermoplastic

31. For maximum ductility, elongation and impact resistance of Mg-alloy isa) solution heat treatmentb) castedc) precipitation heat treatmentd) both a & c

32. Precaution in Al, weldinga) neutral flame is usedb) preheating is neededc) flux is usedd) all

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33. The thickness of the conducting and non-conducting coating in ferrous metal can be measured bya) varnier coliperb) varnier micrometerc) ultrasonicd) eddy current method

34. To measure the thickness of the hollow tubular member normally done bya) distructive methodb) eddy current methodc) ultrasonic methodd) none

35. a combination set is used asa) dipth, gauge, tri-square, scriberb) protractor, scriber, trisquarec) center head, protractor, scriberd) none

36. Mark the correct statement regarding the hardness testera) brinell system uses diamond pointb) vikers uses round ballc) above are correctd) none

37. In nickel cadmium batterya) during discharging, the current flows the negative pole to positive plate and oxygen atoms are driven out from the

positive plateb) electrical leakage is measured by millimeter between cell and castingc) both a & b

38. Hydrogen is given off duringa) all stages of LAB servicingb) over charging of Ni-cdc) both a & b d) none

39. Dies are used to cuta) internal threads of a nutb) external threads of a nut

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ANSWERS:

1. D 2. A 3. C 4. D 5. D

6. B 7. A 8. C 9. D 10. A

11. C 12. A 13.D 14. D 15. A

16. A 17. B 18. A 19. D 20. C

21. C 22. A 23. A 24. D 25. B

26. D 27. B 28. B 29. D 30. A

31. A 32. D 33. D 34. C 35. C

36. D 37. C 38. B 39. –

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PAPER – II (OCT-1996)

1. In a capacitora) capacity depends on separation of plates and measured in faradeb) capacity depends on area of plates and measured in faradec) capacity depends on nature of dielectric materiald) all

2. Relation between volt, ampere and weber is given bya) amp/volt² = weberb) amp X volt = weberc) volt / amp = weberd) none

3. Which statement is correct relating to swaginga) if the diameter of fitting is too large, it has been over swagedb) if the diameter of fitting is too small, it has been under swagedc) if the diameter of fitting is too small, it has been over swaged and cable fitting must be rejectedd) none

4. Mooring is the process in whicha) head of the a/c is in prevailing wind whenever possible b) choke all wheels fore and aftc) tie down the point on aircraftd) all

5. How will you convert a galvanometer in voltmetera) by connecting a high resistance in series with galvanometer

6. What is the work of crystalysta) as curing agentb) as hardenerc) mixed with resind) all are correct

7. Nomex is a a) honey comb materialb) reinforced fibrec) metrix materiald) none

8. The properties of composite material isa) do not corrodeb) stress, fatigue resistantc) it reduce weard) all

9. Zener diodea) has high forward voltage ratingb) has negative resistancec) has a sharp breakdown of low reverse voltaged) used as amplifier

10. In a dye penetrant test before applying developer, what shall be done a) dye should be completely flushed outb) only excessive dye should be removedc) the rinsing operation is completely carried outd) both b & c are correct

11.Which is the correct statement regarding heat treatment of Al-alloya) longer soaking time and lower cooling rate result in greater softeningb) longer soaking time and higher cooling rate result in greater softening

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c) soaking time should be minimumd) none

12. If a magnet is dropped through a current carrying coil, it will fall witha) uniform acceleration equal to –gb) uniform acceleration less than –gc) non-uniform acceleration more than –gd) non-uniform acceleration less than –g

13. Type of heat treatment of component depends ona) proper usedb) composition of alloying elementc) cold work is doned) all

14. In annealing, greater softening can be achieved, if a) cooling rate is very low and it is cold in furnaceb) heating just above the upper critical pointc) both d) none

15. Transfer metal from one object to another by chemical and electrical means is done toa) protect base metal against corrosion and wearb) increase the dimension of a partc) protect base metal against reactiond) all

16. The symbol shows a) lead & Znb) Mg. – alloyc) Cu-alloyd) Fibre

17. Identify the symbol a) automatic reactb) momentary react typec) momentary switch typed) none

18. Identify the symbol

a) Camb) Dowel pinc) Steeld) Taper pin

19. What is the current direction in the circuit

a b

a) 1/3 from a to bb) 2/3 from a to bc) 1/3 from b to ad) zero

20.The circular pitch (p) of a gear is

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V = 0

a) point where the pitch circle of two meshing gears touch b) diameter of pitch circlec) thread per inch of pitch circled) none (distance from the one tooth to the center of next consecutive tooth measured on the pitch circle)

21. In figure (riveting) what fault is shown

a) damage due to riveting toolb) damage due to bucking barc) sheet metal bulging

22. The logic symbol indicatesa) OR-gateb) AND-gatec) NOT-gated) XOR-gate

23. Identify the symbol or a) capacitorb) condenserc) resistord) none

24. Corrosion on Al-alloy is visible in the form ofa) powdery formb) grey spotc) pittingd) shining spark around the spot

25. The hook spanner is used fora) round nut having slot at internalb) square nut having slot at internalc) hexagonal nut having slot at internald) all

26. Aviation snips are used for cuttinga) steel sheetsb) Al-sheets (heat treated)c) Hard materiald) Soft material

27. The sensitivity of voltmeter is expressed ina) Ohmb) Wattc) Emfd) ampere¯1(ohm/voly)

28. In inspection of bolt holes for pits and cracks is carried outa) before starting reamingb) after finishing reamingc) before and after starting reamingd) done

29. In coolers or radiators where operating temperature is high soldering is not done buta) soldering can be done with approved fluxb) inert gas weldingc) seam weldingd) spot welding

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30. The function of flux in brazing operation is to a) minimize oxidationb) to break the surface tension of filling materialc) to flow filler material all round

31. Cracks in thick material welding can be checked bya) eddy currentb) dye penetrant c) ultrasound

32. Heat, treatment of N-alloy is carried out bya) solution heat treatmentb) solution and precipitation HTc) age hardeningd) all

33. To charge the fire in case of only one tire, the jack should be useda) to just clear the tire from groundb) hydraulic jack (single base jack)c) chockes used with remaining wheeld) all are correct

34. Mark the correct statementa) The diametrical pitch and pitch diameter in a spur gear are sameb) If the dia. Pitch (DP) is given, you can find out the addendumc) If we divide DP by PD, we can get size of teethd) If the DP is given, you can not find out the addendum

35. Kevalor isa) while gliming clothb) 4-times more tensile strength than Al

36. A charge is moving along magnetic lines of forcea) if force will always actb) no force will actc) may act or may not actd) none

37. With prepregsa) manual application not requiredb) has to be kept in freezerc) both a & bd) none

38. Weld decay can be prevented bya) presence of titanium & nycheum b) quick heatingc) both a & bd) low temperature

39. The size of the cold chisel is determined bya) length of cutting edgeb) weightc) width of cutting edged) none

40. The term associated with warm gear isa) throad

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b) throad radiusc) pitch d) both a & b

41. Temperature of work in a furnace can be measured bya) thermistorb) pyrometerc) color of work d) thermocouple

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QUESTIONS:

1. When it is necessary to use electrical connectors where they may be exposed to moisture Use a special type of moisture proof connector.

2. When joining electrical connectors they should be connected by Hand only.

3. It is best to set the voltage regulator When engine is warmed – up.

4. High tension ignition wires are checked for current leakage with Hardness tester

5. The wheat stone bridge utilize in a particular type of oil temperature gauge. It is an electrical device for measurement of electrical resistances and in this instance the resistance of wire bridge

Increase with rise in oil temperature

6. The use of small bundles of wire in a/c electrical system is desirable due to Better flexibility

7. The Al cable must be numbers smaller than the copper cable As the size no. get smaller, the cable itself is larger

8. The purpose of special washers on electrical terminals is To better contact and locking purpose

9. When electrical cables or bundles are exposed to high temp The size of the cable or bundle will increase

10. The material used is bounding the a/c should be The same material as the bounded surfaces.

11. If the generator output were fluctuating, how would you place a resistor in the line to settle out the fluctuations In series with the generator

12. In most aircraft, lighting circuits are In parallel to each other

13. As the temperature of a wire increases, the current carrying capacity Decreases.

14. What do you use to excite an alternator D.C. generator exciter

15. The internal resistance of a battery depends on Area of the plate

16. You are about to point a battery compartment, the point should be Acid resistance paint

17. A growler may be used to check Faulty insulation, shorts in a generator commutator

18. Frequency = No. of poles/2 X rpm/60 F = np(rpm)120

19. When an a/c is in flight the cabin hater combustion motor get its, power from the Battery

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20. Landing lights are hooked upto the main line because High amperage is required

21. Two preferred locations for VOR antenna are Top of tail section and top foreward of the fuselage

22. The heat extinguishing agent for electrical fires is Carbon di-oxide

23. A generator field can be flashed by Closing the contact point

24. The type of control switch used for a retractable landing light is described as A single pole double throw (SPDT)

25. The term “spaghells” in electrical installation describes as The plastic tubing used to cover electrical wires and terminals

26. The voltage regulator has a broken wire in the coil under this circumstances you will obtain Zero voltage

27. When putting in a storage battery you should install The +ve lead first

28. Circuit breakers are located Close to the power source

29. Generator voltage causes the points of a reverse current relay To close

30.Which type of winding used in electric starter motor Series circuit of heavy wire

31. The vibrator type voltage regulator has Many turns of fine wire

32. During the operation of a four engine aircraft, which of the following generator controls are available to the pilot Each of the four generators has a switch that is in series with each generator field

33. The freezing of fully charged batteries is greatly reduced owing to The very low freezing point to the acid solution of the charged battery

34. During flight, all the gear, down lock indicator lights burn-out. How would this affect the gear warning horn system It would have no effect

35. You are about to install some parachute flares. Before actual installation, you should Turn both the master switches and flare switch to the off-position

36. During flight, when more electrical power is needed, the generator voltage will Remain at a constant voltage, however, the current flow will increase

37. Excessive e resistance at high current carrying connections should be determined by A milivolt drop

38. The tensile strength of the cable to terminal joints should be at least equivalent to The tensile strength of the cable itself

39. When frequent disconnections are required in the electrical system, the mechanic should use in order to facilitate maintenance

Connectors (plugs and receptacles)

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40. Soldered electric splices should not be used because they are Particularly brittle

41. Electric wiring that offers the advantages of case of installation, simple maintenance and reduce weight is known as Open wiring method

42. Junction boxes should be mounted with the open side facing downward, this arrangement permits Loose metallic objects, such as washers, bolts etc to fall out of the box and prevent possible short circuits

43. An arcing fault between an electric cable and a metallic flammable, fluid line may puncture, the line and result in a serious fire, when separation is impracticable, the electrical cable should

Be places over flammable fluid line and securely clamped to the structure

44. Junction boxes should be proved with Adequate drain holes

45. One of the most common used of rheostats is to vary the Intensity of the tight throughout the aeroplane

46. Wheat – stone bridge When bridge is balanced, current will zero

47. After annealing, component is cooled in Furnace itself and s/w off the heating source

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ANSWERS:

1. D 2. D 3. C 4. D 5. –

6. A 7. A 8. D 9. B 10. D

11. A 12. B,D 13. D 14. C 15. D

16. A 17. C 18. A 19. D 20.D

21. C 22. A 23. A 24. A,C,D 25. A

26. A,B 27. D 28. C 29. B 30. A

31. C 32. B 33. A,D 34. B 35. B

36. B 37. C 38. C 39. C 40. D

41. B

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DGCA LICENCE EXAMINATION – PAPER II – MAR’ 94 SESSION(A/C GENERAL ENGG. & MAINTENANCE PRACTICES)

1. The given drawing indicates:a) cutting planeb) sectional viewc) vewing planed) cutting plane for complex view

2. The given figure indicates: a) cork, felt, fabricb) brassc) magnesiumd) none of these

3. The given figure indicates: &a) solenoid & thread batteriesb) transformer & three batteriesc) solenoid & one battery having three celld) all are correct

4. For reaming holes should be under size:a) about 0.003” to 0.007”b) about 0.007” to 0.010”c) not necessaryd) none of these

5. Convert 29 into binary system:a) 111102b) 101112c) 110112d) none of these

6. The radiographic inspection:a) low wave length signal travel with velocity of lightb) high wave length signal travel with velocity of light

7. In ATA 100 systems marking on the cable as per:a) prefix & strefixb) prefix & suffixc) number & letter

8. The given figure indicates:

a) universal headb) brazier headc) round headd) any one of the above

9. In an alto meter if there is absence of barometer is pressure, the pitot line is checked by:a) vacuum chamberb) micrometer

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Shank dia

length

10. The given figure indicates:a) shake proof washerb) internal star washerc) both a & bd) none of these

11. In pitot static system the static vent to of the flat plate tube any where in the a/c structure to prevent.a) position errorb) instrument errorc) protection against ice formationd) both a & c are correct

12. The purpose of annealing is to:a) soften the metalb) releave internal stressesc) both a & b are correctd) none of these

13. The given tool is used for:a) counter sinkingb) counter boringc) drillingd) any one of the above

14. Aviation ship is used for cutting:a) heat treated Al-alloy & stainless steelb) Cu & its alloyc) Any soft metald) All the above

15. This micrometer reading is showing:a) positive zero errorb) negative zero errorc) no errord) none of these

16. the given reading shown:a) positive zero errorb) negative zero errorc) no errord) none of these

17. In silver soldering the temperature ranges betweena) 200 deg.C – 400 deg.Cb) 400 deg.C – 600 deg.Cc) 505 deg.C – 805 deg.Cd) 800 deg.C – 1000 deg.C

18. The A.S.I. instrument consists of:a) one capsuleb) two set of capsulesc) three set of aneroid capsulesd) there is no aneroid used is A.S.I.

19. The given figure in computer indicates:a) entry-ON, exit – OFFb) entry-OFF, exit-ONc) data is not availabled) all are wrong

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20. Hydrogen gas emits in the battery during servicing:a) during the process of chargingb) is Ni-cd battery when charging is completedc) when battery is over chargedd) when connection on their terminal is versed

21. The given fault (as per figure) found in spot welding is:

a) porosity crackb) slashingc) deforming of weldd) none of these

22. A screw having no head flush with the structure can be turned by:a) allean keyb) screw extractorc) simple screw driverd) both (a) if have hex grove head and (b)

23. As per figure it is:a) sector gearb) as a & when used with external gear – it gives the intermittent rotary motionc) spur gear having few teeth brokend) both a & b are correct

24. In oxyacetylene welding to extinguish the flame it is good practice to:a) first close oxygen and then acetylene regulatorb) first close acetylene and then oxygen regulatorc) close oxygen and acetylene regulators at a timed) none of these

25. For welding cracks which type of joints should be preferred:a) butt joiningb) lap joiningc) edge joiningd) none of these

26. In brazing which type of flame is used:a) carburizingb) neutralc) oxidizingd) any one can be used

27. The given tool is used for making spot facing to seal the washer, nut bolt head is:a) counter sinkb) counter borec) reamerd) any one of them

28. The extended round portion which is indicated by letter ‘A’ in the above figure is known as:a) pilotb) straightnerc) guided) all the above are wrong

29. For making neat and clean welding:a) after welding remove the excess metal with file

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b) the filler material should be properly filled and evenly spacedc) fill the gap with Cu of brassd) all are wrong

30. The thermo-plastic material can be:a) harden after cooling and soften after heatingb) harden after cooling but can not be soften after heatingc) used for making wind shieldd) both a & c are correct

31. Mg-alloy has no more used in a/c because:a) suspectable to corrosionb) chances of crackingc) highly resistance to corrosiond) both a & b are correct

32. Rockwell hardness test is carried on specimen to :a) measure depthb) measure resistance to penetrationc) both a & b are correct d) measure the diameter of impression

33. In oxyacetylene, the amount of oxygen and acetylene gases are in equal proportion, as indicated in figure, is the:a) neutral flameb) oxidizing flamec) reducing flamed) no flame will be – produced in this manner

34. Y & W indicatesa) annealedb) solution heat treatment & quenched but not agedc) solution heat treatment & cold workd) stabilized

35. Triode valve consists ofa) heater, cathode, plate & meshing wire screen (grid) between plate cathodeb) heater, cathode & platec) heater, cathode, control grid, screen, grid & plated) heater, cathode, control grid, screen suppressor grid & plate

36. For converting galvanometer into voltmeter connect: a) high resistance wire in series with meter for increase rangeb) low resistance wire in series with meterc) high resistance wire in parallel with meterd) low resistance wire in parallel with meter

37. Inductance depends on:a) No. of turns of the coilb) Core material of the coilc) Cross – sectional aread) All the above are correct

38. Transformer is an electrical device with is used:a) for carrying high voltage to long distanceb) in radio setc) both a & b are correctd) none of these

39. In silicon control rectifier, there is:a) three junction b) two terminals are forward blased & two are reversed blasedc) four junctiond) none of these

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40. This figure indicates:a) delta connection alternatorb) three phase alternatorc) wire connection alternatord) both a & b are correct

41. The given figure indicating:a) porosityb) pittingc) tight crackd) partially welded lap or tight crack

42. The drill size dia. Can be classified satisfactorya) 1 to 80b) A to Zc) Both a & b are correctd) None of the above

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ANSWERS:

1. A 2. A 3. C 4. A 5. A

6. A,B 7. A,C 8. A 9. B 10. C

11.D 12. C 13. A 14. A 15. A

16. B 17. C 18. D 19. A 20. B

21. A 22. A 23. D 24. B,C 25. A

26. B 27. B 28. A 29. D 30. D

31. D 32. C 33. A 34. B,C 35. A

36. A 37. D 38. C 39. A 40. D

41. C 42. B

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SUBJECTIVE QUESTIONS:

1. The figure indicating:a) wire type external circlipb) wire type internal circlipc) plate type internal circlipd) plate type external circlip

2. Coating of Al-alloy by a layer of pure Al is calleda) Alelad or purecladb) Alodizingc) Anodizingd) All are wrong

3. For changing the direction from linear to reciprocating motion:a) rack is used with another spur gearb) rack is used with another rackc) sector gear is used with external geard) both a & c are correct

4. In composite material Kevlar is identified by:a) yellow colourb) black colourc) silver (white) colord) there is no color identification in composite material

5. Elastic stop nut should not be used where:a) temperature is very lowb) temperature is higher than 250 deg.Fc) vibration is very high

6. a) How many types of corrosion forms on the a/c structure? b) What are the factors which affects the corrosion?

c)How preventive measures can be taken to prevent the formation of corrosion on the a/c?

7. a) Write down the name of the device given in figure?b)Write about atleast three types.c) How it functions and describe

its working principle?

8. Step up transformers are characterized bya) high voltage and low current in secondaryb) high current and low voltage in secondaryc) high current and low voltage in primaryd) high voltage and low current in primary

9. Inductive reactancea) directly proportional to the frequency of induction

10. The amount of electricity a capacitor can store is increaseda) decreasing the area of the plateb) decreasing the distance between the platesc) increasing the distance between the platesd) selecting the low value of dielectric constant’

11. The total current flow in the circuit isa) 0.24 b) 0.44 c) 1.44 d) 0.84

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12. The best matrix material of composite structure must possess low viscosity easier curing methods and processing conditions. With good chemical thermal stability. On the above accounts the best matrix is

a) polyesterb) epoxyc) phenolic and polyamidesd) bismaleimide

13. Which one of the following types of epoxy resin is best for fire resistancea) standard DGEBA resinb) epoxy novolic and cyclo-aliphatic resinc) halogen Ted epoxyd) flexible epoxy resin

14. Composite structures are tested using conventional radiographic equipment, however this method can detect defect ofa) large single voidb) porosityc) cracks parallel to beam axisd) cracks normal to beam axis

15. Mark the correct statement in respect to inspection methods used for composite materialsa) the thickness of the laminate and depth of discontinuity does not pose any problem in ‘C’ scan methodb) the pulse feature of acoustic emission is analyzed to detect microscopic defect in acoustic emission methodc) thermos copy is most difficult method since it require material with high thermal conductivityd) all the above are correct

16. The deflecting structures like wing should withstand large tensile and compressive load for which most suitable composite structure is

a) nomad with fiber glass skinb) sandwich of the fiber glass core and nomad skinc) sandwich of fiber glass and graphite composited) any one of the above method used

(COMPUTER)

17. Main memory unit of computera) stores bulk of data and instructionsb) stores small amount of data and instructionsc) performs air thematicd) supervise the working of all the units

18. The capability of the computer system to take logical decisions helps it ina) making faster calculationsb) storing huge amount of datac) decision makingd) none of these

19. The unit of computer performing calculations isa) input unitb) memoryc) output unitd) A.L.U (Arithmetic Logic Unit)

20. The basic arithmetic operation performed by a computer isa) additionb) subtractionc) multiplicationd) division

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21. A finite sequence of steps needed to solve a problem is calleda) a processb) a method of solutionc) an algorithmd) a flowchart

22. In computing basic control structure always hasa) one entry and two exit pointsb) two entry and one exit pointsc) one entry and one exit pointsd) any number of entry and exit points

23. Reverse revatting is sued wherea) a heavier gun should be usedb) the gun should be opened upc) there is no room for revet gund) all the above are correct

24. Type of Hi-shear pin shown in the sketch is known asa) dowel pinb) tapped pinc) special camd) none of the above is correct

25. While revetting if the damage shown in the sketch takes place, it is known asa) damaged place due to riveting toolb) cracked head due to hard materialc) rivet tight and plates bulgedd) none of the above is correct

26. Rivet hole can be located bya) punching pilot holesb) using of a templatec) using a hole finderd) all the above are correct

27. A, B & C of the turnbuckle assembly indicatesa) cable eye, battle abdpin eye respectivelyb) fork, barrel and fork respectively c) cable eye, thimble and fork respectivelyd) fork, body and pin respectively

28. Tapping screws shown in the sketch A,B & C area) counter sunk oval, truss and Philipsb) counter sunk oval, round head and Philipsc) counter sunk, round and slottedd) both a & b are correct

29. Mark the correct statementA bolt marked with a cross inside a triangle on its head is

a) Al. alloy both with close toleranceb) NAS close tolerancec) Corrosion resistant AN standard steel bothd) AN steel both

30. Bolt AN 6-10 indicatesa) length 3/16” & dia ½”b) dia 3/8” & length 5/4” (nickel steel)

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31. Purpose of heat treating titanium isa) relief of stressb) chermal hardening to improve strengthc) a & b and also to provide maximum ductility for subsequent cold workingd) none of the above are correct

32. Channels, angles, T-sections can be made by the process known asa) rollingb) extrudingc) forgingd) hammering

33. For gas welding, while lighting the blow pipe, if flash back occurs, the cause may be due toa) regulators are not set to correct pressureb) flow of gas is not ensured before lighting takes placec) both a & b are correct and over heatingd) none use of spark lighter

34. When certain natural crystal is subjected to a) vibration sound beam, an altering current is producedb) mechanical stress, an electric field it producedc) application of voltage, mechanical stress is produced d) all the above are correct and also in case of vibration, the frequency of vibration depends on the thickness of the

crystal

35. Delamination can be detected by which methoda) ultrasonicb) eddy currentc) dye penetrantd) magnetic particle

36. Zinc chloride is the best flux to use solderinga) wrought iron, steel or stainless steelb) cast iron, nickel, leadc) monel metal, galvanized irond) all above are correct

37. Anneanling is the process thata) makes the metal softb) relieves the internal strainc) that lowers the strength of the metald) both a & c correct

38. T4 and W for alluminium alloy indicatesa) solution heat treated and quenched but not agedb) only solution heat treatedc) precipitation heat treatedd) solution heat treated and artificially aged

39. Phosphating is parcolubrizing for iron and steel

40. The solution used in cadmium planning isa) sodium cyanide + cadmium oxide + caustic soda in water

41. Scattered dot when viewed under ultra violet radiation indicatesa) fine porosityb) gross porosityc) pittingd) both a & c are correct

42. If a damp flux is used while welding with oxy-acetylene flame, then it will causea) porosityb) lack of penetration

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c) cratersd) channeling

43. What is the maximum diameter of the tubea) 0.500 b) 0.3125 c) 0.3130 d) 0.31255

44. Which treatment process of metal produces a hard and wear resistant surface area with strong and tough in corea) case hardeningb) temperingc) annealingd) normalizing

45. The diametrical pitch of a gear isa) An imaginary circle passing through the points at which meshing of teeth takes placeb) The diameter of the pitch circlec) The number of teeth per inch of pitch diameterd) None of the above is correct

46. In connection with square thread, mark the correct statementa) the width and depth of the thread are equal to the space between threadsb) it is very strongc) accurate machining of this thread is difficultd) all of the above are correct

47. While drilling a hole, of the finished hole ahs a rough surface, the cause isa) dull drill was usedb) the drill penetrated the work very slowly and become very hot while in operationc) the drill hole was made very rapidlyd) both a & b are correct

48. Length of hackshaw blade isa) distance from the centre of one hole to the center of the another hole of other endb) total length over which teeth are spreadedc) length from one end to the other endd) all of the above are wrong

49. Micrometer shadow isa) shadow of the thimbleb) shadow of the sleevec) shadow of the spindled) none of the above

50. Most accurate method of classifying drill size isa) 1/16” to 1b) 1/64” to 11”c) A to Zd) No. 80 to No.1

51. To ream a hole, the hole must be drilleda) 0.001” to 0.007” undersizeb) same size as givenc) 0.003” to 0.007” undersize

52. Flux density is measured in tesla – weber/m² =a) gaussb) faradc) ampered) hennery

53. Altimeter in absence of manometer may be checked by of 203

a) vaccum gaugeb) vaccum chamberc) micromanometerd) all of the above

54. Zenor diode is useda) as voltage regulatorb) to prevent spikesc) both a & b

55. Binary expression is known as a) bit b) bytec) none of the above

56. The symbol of AND gate is a) none

57. Base of NPN transistor isa) N type semiconductorb) P typec) N-P dioded) P-N diode

58. Bolt without any specification while usinga) should be cleaned and degreased thoroughlyb) should be greased on the threadc) should be greased thoroughly

59. Turn buckle is in safety minimuma) Not more than one thread is exposed outside barrelb) Half no. of threads are inside the barrelc) All the threads are inside the barreld) Not more than 3 threads are exposed

60. Trammel is useda) to draw large circleb) to draw large squarec) to draw large rectangled) to draw large pentagon

61. The isometric view identifying the view indicated by the ref. 6093

62. The line used to show an edge which is not visible is a a) position lineb) phantom linec) hidden lined) broken line

63. a drawing in which all the parts are brought together as an

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AB C

SEPTEMBER - 94

1. The most commonly used symbols for electromagnetic flow direction method isa) UFDb) MFDc) PFDd) EFD

2. In oxyacetelene welding it is better practice while shutting off the flamea) Shut off oxygen firstb) Shut off acytelene firstc) Turn off the regulatord) Turning off simultaneously

3. The silver soldeny metal melts ata) 200-400 degree centb) 500-850 degree centc) 1000-1600 degree cent

4. The core of reinforced polymer thermoplastic is filled asa) metalb) fibre glass and plastic resinc) carbond) all of the above

5. Synthetic thermoplastica) when heated becomes softb) when cooled becomes hardc) when heated becomes hardd) both a & c are correct

6. A crack may be repaired bya) butt weldingb) spot weldingc) lap weldingd) edge welding

7. Annealing is the processa) makes a metal softb) relives the internal strainc) toughen the metald) both a & b are correct

8. T & W are the symbols utilized for heat treatment of Al-alloy sheet indicatesa) solution heat treated onlyb) solution heat treated & quenched but not agedc) precipitation heat treatedd) solution heat treated & artificially aged

9. Rockwell hardness testera) measures resistance to penetrationb) measures the diameter of the impressionc) measures depth of impressiond) both a & c are correct

10. Which is true in relation to magnesium alloya) it is most susceptible metal to corrosionb) it has get high resistance to corrosion quality and can be heat treatedc) it is the lightest metal used in the a/c structured) both a & c are correct

11. Galvanic corrosion isa) dissimilar metal corrosion

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12. Decimal 29 is equivalent to binary numbera) 11101b) 10110c) 11110d) 10101

13. SCR (Silicon Control Rectifier) hasa) 2 terminalsb) 2 terminals are forward biased and 1 terminal are/is reverse c) 3 terminalsd) none of the above

14. A triode consists ofa) a plate grid and a heaterb) a plate, cathode and a heaterc) plate, screen and a heaterd) plate, cathode, heater and wire screen between the plate and cathode

15. Zenor diode is useda) to regulate voltageb) controls the spikesc) both a & b

16. Diode, triode and transistorsa) obey ohm’s lawb) does not obey ohm’s law

17. Taking all the factors into consideration the most commonly used metal as electrical conducting a) aluminiumb) copperc) silverd) iron

18. A galvanometer maybe converted to a voltameter by connectinga) low resistance coil in parallel with meterb) high resistance coil in parallel with meterc) high resistance coil in series with meter to increase ranged) low resistance coil in series with meter

19. In ATA coding system the size and type of the electrical cables/wires in a/c are given by:a) prefix and suffixb) side by sidec) numbers and lettersd) none of the above

20. Hydrogen gas is given upa) entire servicing of Ni-cd batteryb) when lead acid battery gets over chargedc) towards the end of the charging of Ni-cd batteryd) both b & c are correct

21. The strength of the electromagnet is determined bya) No. of turns of the coilb) Strength of the magnetc) Speed of rotation of the magnetd) All of the above

22. ½ - 13 NC-B indicatesa) pitch diameter ½”b) B-external threadc) 13 NC- indicates 13 TPI and have national formd) all

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23. A vernier caliper has least count 0.02 cm and have a negative error – 0.02mm reading on main scale is 0.48 and 6th division of vernier scale coincide with main scale. The reading is

a) 0.485 cmb) 0.488 cmc) 0.062 mmd) none

24. Counter boring and spot facing isa) having same operationb) counter boring is done for nutc) spot facing is the operation of making flat circular surface around holed) none

25. In gear system, a driver and driven on the shaft to get the same direction of rotationa) bevel gear is usedb) internal and external gear combination is usedc) as in (a) and no mechanical advantage is obtainedd) none

26. In regular interval, to calibrate a micrometer where you carried outa) in normal environment and controlled temperatureb) in air conditioned room but does not proofc) a room is calibrated upto 20-30 microns, but not air conditionedd) a room is calibrated upto 100-150 microns, and also air conditioned

27. To bring the sheet together to get air tight joint, we use a) draw setb) cleco fastenerc) aligning campd) none

28. Choose correct statementa) Philips screw-driver is blunt at endb) Read and prince screw driver is blunt on endc) Bot are interchangeabled) All

29. To avoid vibrating stress in tube linesa) no bend is doneb) two bend is donec) atleast one bend is doned) preferably no bend is done, and if bend is done, it will be less than 45°

30. Dzus fastener consists ofa) stud, washer and receptacleb) stud, gramate and receptaclec) as in (b) and gromate is made of springd) none

31. Air drill in aviation industry is preferred to electric motors a) no other equipment is requiredb) it is available in various shape, sizes, running speed, drilling head anglec) high initial cost and less maintenanced) both a & b

32. Double flaring isa) provide smooth and concentric surfaceb) as in (a) and resistance to shearing effect of torque

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c) as in (b) and generally used in a/cd) as in © and diameter of tube is reduced

33. Doubller plate isa) same sizeb) double the thicknessc) just half the thicknessd) none

34. Ballast is used to balance the a/ca) located as near as to CGb) is minimum weight and places as far as from CGc) preferable permanent ballastd) preferable temporary ballast

35. Electric weighing machinea) switched – ON before 30 minutesb) switched – ON just prior to weighing so that equipment is not heatedc) as in (a) and circuit is provided to get stabilizedd) all are correct

36. Static wick is mentioned in the ___chapter of the maintenance manuala) 21 b) 23 c) 24 d) 32

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PAPER – II (DGCA QUESTIONS)

1. Aviation snips are used ona) heat treated Al alloy sheetb) fibrec) sheet steeld) all the above

2. Solder used for electrical connection has the M & rangea) 100-2000 cb) 100-3000 cc) 300-6000 cd) 200-3000 c

3. Helical gears are used fora) transmit motion to shaft at an angleb) transmit motion to shaft which is are perpendicular togetherc) to carry larger loadsd) none of the above

4. The best conductor available considering all factors in a/c use isa) copperb) alluminiumc) brassd) silver

5. The binary equivalent of 29 isa) 11101b) 10101c) 10011d) 11111

6. An altimeter consists ofa) two aneroid capsulesb) pressure setting knob for adjusting barometric pressurec) three aneroid capsulesd) all the above are correct

7. Most headless set screws are turned bya) screw driverb) Philips screw driverc) Internal screw driverd) Allen wrench

8. SCR isa) four junction diodeb) three junction diodec) two junction forward based with one reversed biasedd) plate, cathode, heater and fine mesh of wire between plate and cathode

9. The zener diodea) is used as rectifiedb) is used for voltage regulation

10. The most accurate system for drill size isa) fraction (1/16” – 31/2”)b) 1/64” – 11/2”c) A to Zd) No. 80 to No. 1

11. In a vernier scale, 24 division are equal to 25 division of vernier so 1cm of main scale is divided 20 equal parts, find the least count

a) 0.001 cm of 203

b) 0.002 cmc) 0.002mmd) 0.001 mm

12. In a vernier micrometer of part of main scale is divided into 10 of scale, the main scale has the graduations of 1mm find the least count

a) 0.01cmb) 0.001 cmc) 0.09mmd) 0.009 cm

13. The component shown asa) flangeb) scuplingc) spacerd) a & b

14. Hydrogen is given offa) during all stages of battery servicingb) when battery is over heated in Ni-cd batteryc) during charging operation of the batteryd) during discharging operation of the battery

15. Magnesium isa) susceptible is corrosionb) corrosion precisiant and light weightc) has tendency in crackd) a & c are correct

16. When switch ‘S’ is open, voltmeter indicates 1.5v and when closed indicates 1.35 v current is 1 Amp what is the internal resistance of the battery

a) Ohmb) 0.15 ohmc) 1.35 ohmd) 1.50 ohm

17. Altimeter is checked by when barometer is not availablea) micro manometerb) vacuum chamber

18. Static vents in pitot static system are located witha) free at air streamb) to eliminate ice formationc) a & b are correctd) flexible

19. X-ray used in NDT inspection:a) have short wave length high penetrating powerb) have long wave length low penetrating power

20. To repair a crack, the join to be formeda) lap jointb) butt jointc) bee jointd) corner joint

21. A transistor isa) amply the low input signal to high output signalb) used as a rectifierc) used in transducer setd) a & b are correct

22. Purpose of plates in either straight or twisted drilla) to provide the flow of the cutting fluid to the cutting edges

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b) for clip removalc) to provide lip cutting edgesd) all of the above

23. Clevis bolt is used fora) shear loads onlyb) tensile loads onlyc) as a pin in control systemsd) a & c are correct

24. In a capacitor the voltage rating decreases with increase ina) dielectric strengthb) thickness of dielectricc) frequencyd) area of the plates

25. American close tolerance nut is used fora) machine surfacesb) heavy forged structuresc) tight fit assembliesd) b & c are correct

26. In different countries, the same rate battery was charged which gets more chargeda) 80f, 1 hrb) 80of , 1 hrc) 60of, 30 mind) 70of, 45 min

27. BA british unified bolts and screws can be recognized bya) violet dyeb) UNF stamping on the boltc) Raised or recessed circles on the headd) All of the above

28. In case of flouruscent die penetrant inspection, the developed used isa) dry powerb) powder suspended in volatile liquidc) powder suspended in waterd) all of the above

29. Round head rivet isa) 430b) 442c) 462d) 456

30. Fretting corrosion effecta) thickness of the parts will be reduceb) parts get brittlenessc) toughness increased) fatigue strength of parts decreases

31. When selecting a rivet for replacement of a solid rivet, we observe fora) dissimilar actual corrosionb) shape of headc) length of rivetd) none of the above

32. Fillet welding isa) edges joined perpendicularly byb) edges joined parallely by clamberingc) edges joined keeping the plates one over the other parallely, one being horizontal d) clearance done at the edge of the gear teeth

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33. American standard control cables are made ofa) Molybenium steelb) Cast steelc) Stainless steeld) Brass

34. For most satisfactory plating on AGS and non steel materialsa) nickel platingb) cadmium platingc) zink platingd) galvanizing

35. Though surface of castings and barrs etc removal, by an abrarive cutting tool is calleda) grindingb) snaggingc) lappingd) finishing

36. Replace a solid rivet with a hollow rivet we would check fora) material and compression strengthb) material and shear strengthc) heat treatmentd) material and tensile strength

37. DTI indicator isa) eccentricity of a small levels in rotating shaftsb) to measure the dimensionc) to check the depth of large partsd) all of the above

38. In hot oil and chalk methods the following can not be detecteda) vertical cracksb) horizontal cracksc) wavy cracksd) minute flows and tightly shut cracks

39. The following washers are not used on the part which is exposed to air flowa) plain washerb) special washerc) lock washerd) a & b

40. How many types of fits according to American standardsa) three b) sixc) eightd) four

41. Structural screw will havea) same strength of the AN boltb) half of strength of the AN boltc) sometime less than half of strength of the AN boltd) both b & c are correct

42. The treatment of Magnesium, the following chemicals are used ina) electrolyte bathb) potassium dichromate, sodium chromate and zinc chloridec) ammonium cyanide, potassium cyanide and zinc sulphated) none of the above

43. Society of british aerospace has given rivet standard as of 203

a) AS b) SP c) ACS d) MS

44. Is fastener dimensions are specified asa) diameter as 1/32 inches and length as 1/8 inchesb) diameter as 1/16 inches and length as 1/16 inchesc) diameter as 1/16 inches and length as 1/8 inchesd) diameter as 1/16 inches and length as 1/100 inches

45. Radio graphic inspection, which of the following waves are useda) X-raysb) Y-raysc) Ultraviolet raysd) a & b

46. Dump fluid increases a) porosityb) lack of penetrationc) channel lowd) clarity of formation

47. Marketing is done on constant barrela) to avoid miscalculationsb) more precise valuedc) to create miscalculationsd) none of the above

48. Black pitting and reddish brown corrosion occurs ona) corrosion resistant steelb) cast ironc) magneciumd) aluminium

49. For getting high ampere hour capacity and high terminal voltage the plate of cells should be connected asa) in series so that to get high internal resistanceb) in series so that to get low internal resistancec) in parallel so that to get low internal resistanced) in parallel so that to get high internal resistance

50. Regarding thermal runway which of the following is not correcta) imbalancing of cellsb) deep cell treatmentc) due to constant current more chances for thermal runawayd) over heating of a cell

51. For any battery the charged with continent current conditions can be found while changinga) specific gravity taken at interval of 30 min three consecutive redings should be sameb) gassing will occurc) voltage stops risingd) a & b are correct

52. A 35 AH, 12 V battery is discharged according to the following rates which will give max. capacity?a) 10 hrs, discharge rateb) 15 hrs, discharge ratec) 20 hrs discharge rated) 5 hrs discharge rate

53. Structural screw will have a) same strength of the AN boltb) half of strength of the AN boltc) sometimes less than half of strength of the AN boltd) both b & c are correct

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54. Capacity in lead acid battery depends upona) density of electrolyteb) plate areac) internal resistanced) none of cells

55. State of charge of lead acid battery us determined bya) density of electrolyteb) plate areac) internal resistanced) no. of cells

56. The motor with two different coils wound on difference sence, which can rotate in two direction isa) seriesb) shuntc) compoundd) differentially compound motor

57. Shop head of a rivet isa) formed by pnuementic hammerb) manufactured headc) special rivet

58. Melting range occurs ina) pure material with 5% impuritiesb) pure material with 20% impuritiesc) alloying materialsd) pure materials

59. Disposable load isa) fuel that can be thrown out of a/c during emergency conditionsb) all persons and their belongings, fuel, oil that is used in the journeyc) empty load and variable loadd) fuel and oil which is unusable

60. The stretch showsa) buttress threadb) ACME threadc) V-threadd) Square thread

61. The method used in temper steel depends upona) type of steelb) size of steelc) density of steeld) all of the above

62. The readings shown on the instruments isa) 1.318”b) 1.314”c) 2.300”d) 3.150”

63. The computer hard disks and floppy disks area) different in useb) similar but hard disk can store more than floppy diskc) similar but hard disk can store less than floppy diskd) none of the above

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64. The readings shows asa) 2.500”b) 0.250”c) 0.275”d) 0.200”

65. The CP of bevel gear isa) tooth per inchb) the distance from the center of open tooth to the center of next tooth measured on the pitch circlec) the distance from the center of one tooth to the center of next tooth d) none of the above

66. The binary expression of 296 isa) 101011101b) 100101000c) 111001100d) 110010111

67. The number of TPI is measured bya) screw pitch gaugeb) SWGc) Thickness gauged) None of the above

68. The output of an OR gate will be givena) When all inputs are energizedb) When all the inputs are zeroc) Any one of the input is energizedd) A & C are correct

69. Computer consists ofa) printer, decoder, memoryb) input, output, CPUc) input, output, printerd) none of the above

70. The decimal number for 10111011101 isa) 1501b) 1500c) 1401d) 1600

71. The drawing symbola) fixed capacitorb) variable capacitorc) variable resistord) fixed resistor

72. O-rings are checked for internal cracks bya) 4 power magnifying glassb) by rolling on inspection conec) by rolling on inspection doweld) all of the above

73. Memory of computer area) ROM, CPU, ALCb) ROM, RAM, PROMc) ALC, ROM, RAMd) None of the above

74. Stress corrosion occurs mainly on of 203

a) magnesium alloysb) aluminium alloysc) stainless steeld) both b & c

75. Purpose of using flux in welding ina) to reduce oxidationb) to increase the bondingc) to provide flow to the molten metald) all of the above

76. An optical instrument used to inspect the interior structure of a component isa) fibroscopeb) boroscopec) endoscoped) all of the above

77. The check interior surface condition of cylinders and surfaces, instrument used isa) boroscopeb) fibrescopec) endoscope or introscoped) all of the above

78. Mark correct statementa) A-radial load, B-radial load & thrust loadb) A-thrust load, B-radial loadc) A & B-thrust loadd) A & B-radial load

79. Reading is:a) 0.257b) 0.270c) two hundredths of an inchd) three hundredth of an inch

80. Radiography depends ona) size & shapeb) X-rayc) Thickness of material d) All of the above

81. Bevel gears used fora) transmission of loads for between shafts to each otherb) for variation of speedc) in speed reducersd) a & c are correct

82. The component shown isa) Universal wrenchb) Spanner Frenchc) Open end wrenchd) None of above

83. The tool shown isa) torque wrenchb) extension barc) allen wrenchd) none of above

84. the drawing isa) universal jointb) flex jet socketc) socket

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85. The D.P. in a gear indicatesa) no. of teeth per inchb) size of the gear teethc) both a & b are correctd) none of the above

86. Calculate the reading a) 0.1001b) 0.250c) 0.4250d) 0.200

87. Identify the drawing symbols given belowa) normal C.B., Push-pull C.B., Push-pull C.B.b) automatic C.B, Push C.B, Push-pull C.Bc) Push-pull C.B, automatic C.B, normal C.Bd) Automatic reset, push reset, push reset pull off

88. Barcol tester is used fora) Steelb) Al-alloyc) Titaniumd) As in (b) & copper

89. Rockwell tester measuresa) resistance to penetrationb) diameter of impressionc) size of indentationd) none of the above

90. Cleaning of titanium surfacea) steel, steel woolb) iron scrapersc) mild abrasive or hand polish with aluminiumd) none of the above

91. PN junction is used asa) rectifierb) amplifierc) oscillatord) none of the above

92. NPN transistora) flow of electrons from emitter to collectorb) holes move from collector to emitterc) flow of electrons from base to emitterd) flow of electrons from emitter to base

93. In triode, grida) controls the flow from plate to cathodeb) reduces space chargec) it increases emission of electrons from cathoded) prevents secondary emission

94. Aluminium alloys are welded witha) oxidizing flameb) reducing flamec) neutral flamed) reducing flame but first the flame is neutral and then reduced

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95. Brass & bronze are welded witha) oxidizing flameb) reducingc) neutral flamed) reducing flame but first the flame is neutral and then reduced

96. This tool is used fora) for internal measurementsb) measuring hole diameterc) outside measurementsd) both a & b are correct

97. Calculate the reading a) 0.2507b) 2.507c) 0.4250d) 1.200

98. Identify:a) A & D are variable resistors & b & C are fixed resistorsb) A & C are fixed resistors & b & c are variable resistorsc) A & B are fixed resistors & b & d are variable resistorsd) None of the above

99. Identify:a) potentiometerb) resistorc) auto transformerd) iron transformer

100. Identifya) AN standard steel boltb) Re-worked boltc) Magnetically inspected boltd) Aluminium bolt

101. Identify:a) Re-worked boltb) Special boltc) Magnetically inspected boltd) Aliminium bolt

102. Identify:a) dry cell batteryb) Ni-cd batteryc) Lead acid batteryd) Noneof the above

103. In fluorescent dye penetrant test, the color of the light under which the part is inspecteda) green colour in black lightb) green color in white lightc) ultra violet shining lightd) red color in white light

104. Identify:a) point, face, edgeb) face, heel, edgec) edge, face, heeld) heel, face, edge

105. Identify:a) anchor, nut with double lug

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b) anchor nut with single lugc) anchor nut at corner lugd) none of the above

106. Identifya) cylinderb) conicalc) rectangulard) circular

107. Mark the correct statement:a) diode is used as a rectifierb) triode is sued as a rectifierc) diode is used as a amplifierd) all of the above

108. Identify a) circular shaftb) splinged shaftc) gear & piniond) bearing

109. Identify:a) gear & pinionb) buck & gearc) worm & worm geard) none of the above

110. Identical insulated wire coils are hung from air so that they are racing each other and supplied with same direction A.C.,a) anti clockwise rotationb) both are repelledc) both are attracted to each otherd) clockwise rotation

111. Identify:a) improper upsettingb) bucking bar not in placec) rivet driven too muchd) over sized rivet

112. Which of the following has negative co-efficient of resistancea) thermistorb) transistorc) semiconductord) resistor

113. In a 4 stroke engine the spark plug fires for everya) 4 revolutions of crank shaftb) 2 revolutions of crank shaftc) ½ revolution of crank shaftd) 360 degree revolution of crank shaft

114. If a wire having a resistance of 4 ohms is stretched twice of its length given itsa) 1 ohmsb) 8 ohmsc) 16 ohmsd) 4 ohms

115. 7 resistors of 20 ohms are connected and battery voltage is 2 volt the ammeter readsa) 1/10 A b) 3/10 Ac) 4/10 Ad) 7/10 A

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116. Identification of titanium a) spark testb) moistering & marking on glassc) acid testd) both a & b are correct

117. Inhealed metal isa) is softb) relieved internal stressesc) low strengthd) all

118. Reading of inside micrometera) 0.527b) 0.425c) 0.475d) 2.015

119. Identify:a) knife edge fileb) mill filec) three square filed) none

120. Identify:a) flat cold chiselb) single betal chiselc) diamond point chiseld) double bend chisel

121. Identify:a) adjustable tap wrenchb) a) T handle tap wrenchc) T socket wrenchd) Allen wrench

122. Identify:a) combination wrenchb) box wrenchc) close end wrenchd) crescent wrench

123. The size range of an allen wrench isa) 3/64 to ½”b) 1/64 to ½”c) 3/64 to 1/8”d) 1/64 to 1/8”

124. identifya) colletb) ring gagec) check gaged) none

125. The function nut on an a/c landing gear requires a torque of 100 inch pounds. To reach the nut, a 3” straight adapter must be used on an 15” torque wrench. How many inch pound will be indicated on the torque wrench when the required torque of the nut is reached?

a) 100b) 83.3c) .80d) 115.6

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126. Carbon steel is:a) strongly magnetic and shows slow chemical reaction with nitric acid testb) non magnetic and non action with HNc) strongly magnetic and rapid action with HNO3 testd) slightly magnetic & slow chemical reaction with HNO3 test

127. In a vernier micrometer, 9 part of main scale is divided into 10 parts of vernier scale, the main scale has graduation of 1mm. Find the least count

a) 0.01 cmb) 0.001 cmc) 0.001 mmd) 0.009mm

128. In a given figure, what may be the cause of fault for the installation of rivet?a) greater allowance on the formal headb) snap not regular to the headc) bueking bar not in positiond) none

129. The type of corrosion which occurs when two making surfaces, normally at rest with respect to one another, are subject t slight relative motion is know as?

a) stress corrosionb) fretting corrosionc) crevice corrosiond) inter granular corrosion

130. The letter: 0 in heat treatment process represents the following conditiona) strain hardenedb) annealedc) solution heat treatedd) none

131. When an aircraft catches fire, (made of aluminium) conductivity & resistivity of aluminium respectivelya) increases decreasesb) decreases increasesc) both will increasesd) both will decreases

132. The rivet head indicates the materiala) 2024b) 21171c) monel (nickel copper alloy)d) none

133. The abbreviation “Unix” used in computer indicates:a) a new operating systemb) operating system other than MS-DOS (Microsoft disk operating system)c) PC-AT computer may have “Unix” operating system in addition of MS-DOSd) None of the above

134. The most sophisticated computer isa) micro computerb) first generation computerc) super computerd) none

135. Which is principal load carrying member in composite materialsa) fabricb) matrixc) resind) none of the above

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136. Two wires each one meter long are kept at a distance of 0.02 mt apart if 1 amp current is flowing through each wire, then force acting on the wire will be

a) attractive if the direction of the current flowing through wires is sameb) attractive if the direction of current will oppositec) repulsive if direction of current will be reversed) both b and c are correct

137. The symbol representsa) SCR, rehostat respectivelyb) Rehostat, thyristor respectivelyc) Resistor, FET (field effect transistor) respectivelyd) None of the above

138. In which condition the bridge is said to be balanced a) R1 is increased, R2 is decreasedb) R3 is increased, R4 is decreasedc) R2 is increased, R3 is decreased

139. Which one of the following statement is true?a) In Ni-cd battery, charging and discharging can be done rapidly due to low internal resistance

140. In case of a battery, which of the following quantity can be stored?a) energyb) chargec) currentd) none of the above

141. In a dry cell batterya) carbon electrode is placed centrally surrounded by aluminium chloride electrolyteb) zinc chloride is placed centrally surrounded by aluminium chloride electrolytec) carbon electrode is placed centrally surrounded by zinc chloride electrolyted) both a & c are correct

142. The identical insulated wire coils are hung from air so that they are facing each other and supplied with same direction a) both are attracted to each otherb) both are repelledc) clockwise rotationd) anti clockwise rotation

143. Hot water quenchinga) minimizes distortion and alleviates crackingb) ensures maximum resistance to corrosionc) minimizes distortion but results in crackingd) a & b are correct

144. Which of the following is correcta) (i) & (iv) are correctb) (ii) & (iii) are correctc) (i) & (iii) are correctd) (ii) & (iv) are correct

145. When decreasing of composite material is donea) before initial assemblyb) before sealing operationc) during wet day up operationd) after removal of release file

146. (Source: after manufacturing apart, it is painted to seal the surface from moisture and for cosmetic purposes before which decreasing is required for proper adhesion)

147. The scales on the surface of a heat treatment part is removed by of 203

a) using scrapperb) sand blastingc) dipping in any solventd) all of the above(source: scales are removed from heat treated parts by sand blasting and / or pickling in an acid solution)

148. What is the difference between quantity and quality of X-ray in radiographic inspection?a) there is no meaning of quantity and quality means the penetrating power of a beam of radiationb) quantity is related with penetrating power of X-ray and quality is related with frequency of X-rayc) the quantity refers to the amount of radiation penetrating the specimen which affects the darkness of a radiograph and

quality refers to the penetrating power of a beamd) none above

149. Artificially aged and then cold worked is represented bya) T1 b) T7 c) T10 d) none

150. Which of the following is used as filler materiala) floxb) chopped fibersc) both d) none

151. During welding, the welding torch should be kepta) into the molten metalb) above the colten metalc) depending on welding position and processesd) all the above

152. Crevice corrosiona) is an electrochemical attackb) takes place when metals are in close contact with plasticc) both a & b trued) none of the above

153. Main constituent of stainless steel isa) Crb) Nic) Carbond) None

154. Which statement is true regarding carbon and Kevlar fibersa) kavlar is a type of Aramid fiber, usually, of yellow color, having excellent tensile strength and remarkable flexibility

nut difficult to cut and drillb) carbon fiber is a black fiber, very strong and stiff. It is stronger than Kevlar in compression but more brittlec) both a & b are trued) none of the above is true

155. For checking zero error in a micrometer having arrange of 0-1”a) a cylinder of 1” dia should be kept between the faces of anvil & spindleb) the faces of anvil & spindle will be brought in close contactc) zero mark on the thimble is exactly inline with the datum line on it sleeved) the frame must be held with left hand & thimble rotated with right hand

156. A ratchet mechanism is incorporated in micrometer toa) to apply correct pr.b) To prevent damage to the instrumentc) To have pre-set feel to prevent over torqued) To reduce wear on the measuring faces

157. Three point micrometera) measures very accurately with L.C of 0.001”b) measures very accurately with L.C. of 0.002”c) is used for all types of measurement

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d) all

158. Hawks bill ship are used toa) cut inside of curves/radiib) cut outside of curvesc) cut heavy sheet metald) all

159. Included angle of BA thread ida) 35 degreesb) 47.5 degreesc) 33 degreesd) none

160. Spherical roller bearing takea) take only radial loadsb) take only axial loadsc) accept a minor degree of misalignment between opposite bearingd) none

161. Screw differ from bolt is their threads a fit alsoa) a/c bolts have generally class 3 fit & screw class 2 fitb) a/c bolts have generally class 1 fitc) a/c bolts have generally class fir & screw class 3 fitd) a/c screw & bolts have class 4 fit only

162. Drill machine can do operations ofa) drillingb) counter sinkingc) lappingd) all the above

163. Which statement concerning avdel rivet is correcta) avdel rivet is supplied in pre-lubricated conditionb) the avdel rivet is coded by length & diac) the avdel rivets must be washed in solvent before used) a & b are correct

164. C.P.U. containsa) I/P & O/P unitb) Memory unitc) ALU & CUd) All above

165. The speed of computer is ina) millisecondsb) micro secondc) second d) none

166. Algorithm has the following propertiesa) definiteness & finitenessb) may not be finitec) none

167. The computer executesa) one information at a timeb) two information at a timec) millions of information at a timed) none

168. Which statement is incorrecta) X-ray’s reflected

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b) It destroys living cellsc) It produces heatd) None

169. L.E.D. concerns abouta) Crystalsb) Reverse biasc) Morelight ommited as temp. increasesd) Combination of holes & current

170. Which is not use done compositea) dyepenetantb) X-rayc) Ultra sound methodd) Radiography

171. The grip length of all line fasteners is given ina) 1/100”b) 1/1000”

172. Meontz metal is a a) brass and is resistant to salt waterb) is a bronze

173. Which is correcta) A driven, clockwiseb) B driver, clockwisec) C driven, clockwised) D driven, clockwise

174. identifya) bimetallic thermal cut out s/wb) screwtical disconnectc) notmally ceased s/w

175. Identifya) pressure s/wb) push reset s/wc) thermal s/wd) toggle s/w

176. In the absence (substitute) of Baron which composite hybrid may be useda) Aramid + carbon/graphite

177. Be laminations in composite in a coin test givesa) dull soundb) perfect solid sound

178. Tappered 1 roller bearings takea) axial and radial load in one dilutionb) axial load onlyc) axial and radial load in either direction

179. Spherodise annealing is applicable to a) low carbon steelb) medium and low carbon steelc) high carbon steel

180. For filling slots and key way usea) kniffile

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b) square filec) 3-square filed) half round file

181. Convert into decimal 10111011101a) 1501b) 1500c) 1401d) none

182. Rheostat hasa) 3 terminalsb) 2 terminals

183. In optical instrument used to inspect the interior structure of the components a) fibroscopeb) boroscopec) indoscoped) all of the above

184. If the driven gear teeth ratio is 21:40 what will be the teeth of the driven geara) 30:50b) 30:35c) 40:55d) 63:120

185. Universal gate isa) AND and OR gateb) OR and NOR gatec) NOR and NAND gated) NAND gate

186. Such type of device is used for in fig. 69a) locking purposeb) locking purpose and used as washers alsoc) a & b are correctd) none of the above

187. Relation between he volt ampere webar is given by

188. In a scale 39 division of main scale concides with 10 division of vernier and 1 division of main scale indicate 1mm. 1 division of vernier scale indicates

a) 0.01cmb) 0.01mmc) 1 mmd) 0.001 cm

189. In a scale 24 main division is concide with 25 division of vernier scale and 1 division of main scale indicate 1 mm then 9 division of vernier scale indicates

a) 0.004 cmb) 0.001 mmc) 0.01 mmd) 0.01 cm

190. Force to be applied on file is backward directiona) to remove the cutting chips of metal force is applied on file is forward direction for cuttingb) for saving the life of filec) more metal to be cutd) none

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PAPER-II (FEB-1998)

1. The tool shown in figure isa) box-end wrenchb) double end offset wrenchc) flare nut wrenchd) combination wrench

2. Identify the followinga) rheastal and sc diodeb) resistance and photo diodec) rheastal and SCR d) none

3. The figure showsa) collelb) tapc) died) chuck

4. The figure shows process ofa) riveting with the riveting gun on rivet headb) bucking bar on the rivetc) dimpling the rivetd) none

5. Figure (5.42-5.43, pg. No. 107 and 108 shop theory) showsa) plug gaugeb) snap gaugec) ring gauged) none

6. For threading a hole, the hole should be drilleda) approximately 0.003” to 0.007” undersizeb) approximately 0.003” to 0.007” oversizec) 0.007 undersized) none

7. Secondary cell storesa) capacityb) energyc) powerd) work

8. The tool shown isa) three square fileb) rectangular filec) knife edge filed) none

9. “O” or “A” indicatesa) anhealed recrystallizedb) quenchedc) forgedd) both a & b

10. As the presence of figure and find the amount of torque applied to a fastener by the torque wrencha) 120

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b) 150

11. The tool shown in figure isa) single bewel cape chiselb) double bewel cape chiselc) diamond point, chiseld) none

12. Mark the correct name of the figurea) turn buckle barrelb) turn buckle forkc) turn buckle pin eyed) both b and c

13. Mark the correct figurea) a & cb) b & cc) a & dd) b & d

14. With increase in temperature, resistance of cua) increaseb) decreasec) infinited) same

15. If the plate is more +ve w.r.t cathode, the electronsa) will start to flow toward plateb) will not start to flow toward platec) will start to flow toward plate but will damage diode noned) none

16. Ceramic fibres are often used witha) modified polyester resinb) epoxy resinc) metal metrixd) none

17. In nitric acid test, the material shows rapid action with greenish blue color, the material isa) CRSb) Carbon steelc) Nickel steeld) All

18. Highest compressive strength of composite isa) carbon/graphiteb) ceramicc) barond) both a & b

19. The tool shown in figure is used fora) transferring the measurementb) used in calipersc) measuring internal diameter and/of hollow cylinderd) as a squaral drill bit

20. Which NDT cannot be used to test a 0.5mm Al-steeta) magnetic particle inspectionb) eddy current testc) X-rayd) None

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21. In a transformer the primary has 200 turns and the secondary has 400 turns. If the supply of 28v is given in primary then the secondary voltage is

a) 70vb) 110vc) 50vd) 24v

22. Calipers are used for the purpose ofa) measure inside diameterb) measure outside diameterc) measure distance between two surfaced) both a & c

23. The flow chart symbol indicates a) activityb) inputc) outputd) both b & c

24. Fibre glass sheet is used between Al and carbon/graphite joint toa) protect it from corrosionb) used as core metalc) provide better strengthd) all are correct

25. Mark the correct statementa) the diametrical pitch and pitch diameter in a spur gear are sameb) if the diametrical pitch (DP) is given, you can find out the addendumc) if we divide DP by PD, we can get size of teethd) if the DP is given, you can fin out the addendum

Feb - 1999

1. The useful load of an a/c is thea) difference between maximum gross weight and empty weightb) difference between the net weight and total weightc) sum of the empty weight and maximum gross weightd) none

2. What is the color of AN-steel flared tube filling isa) black b) bluec) greend) while

3. What is the advantage of double flaring on Al-tubing a) easy of connectionb) it is less resistant to the shearing effectc) it is more resistant to shearing effect of torque d) none

4. Flexible hose used in a/c plumbing is classified in size according to a) outside diameterb) class sectional areac) inside diameterd) all are correct

5. Which tubing has the characteristics – (high strength & abbrassive strength) for use un a high pressure (32,000.psi) hydraulic system of operation of landing gear and flap

a) 2024-Tb) 5052-O Al-alloy

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c) CRS d) 1100-1/2 or 3003-1/2H, Al-alloy

6. Which of the NDT testing method is suitable for the inspection of most metal, plastic and ceramic surface defectsa) eddy currentb) magnetic particle inspectionc) ultrasonic testd) dye penetrant method

7. How many of these factors are considered essential of knowledge for x-ray exposurei) processing of filmii) material thickness and densityiii) exposure distanceiv) film characteristics

a) 1 b) 2 c) 3 4) 4

8. Which type of crack can be detected by magnetic particle inspection using either circular or longitudinal magnetizationa) 45b) longitudinalc) transversed) sub-surface

9. Alclad is metal consists ofa) Al-alloy surface and pure Al-coreb) Pure Al-surface and Al-alloy corec) A homogenous mixture of pure N and N-alloyd) All are correct (multiple layer of Al-alloy and pure N)

10. A fibre type self locking nut must not be used on a/c if bolt is a) under shear loadb) under tensile loadc) subjected to rotationd) subjected to vibration

11. A triode consists ofa) plate, grid and a heaterb) plate, cathode and heaterc) cathode and a plated) plate, cathode, heater and a screen between the plate and cathode

12. Diode, triode and transistorsa) obeys ohm’s lawb) does not obey ohm’s lawc) not a linear resistanced) both b & c are correct

13. Considering all factors the most commonly used metal as electrical conductor in a/c isa) aluminiumb) copperc) silverd) tongesten

14. A galvanometer may be converted to a voltmeter by connectinga) low resistance coil in parallel with meterb) high resistance in parallel to meterc) low resistance in series with meterd) high resistance in series with meter to increase range

15. The figure indicates of 203

a) three phase delta alternator connectionb) three phase Y connection for alternatorc) three phase delta to Y transformer connection

16. As per ATA 100 code the size & type of electrical wire in aircraft are givena) by prefix and suffixesb) side by sidec) at the beginning and at the endd) by letters and numbers

17. Transformer is a devicea) used in transistors setb) transfer electrical energy from one circuit to another by changing frequencyc) both a & b

18. Hydrogen evolvesa) towards the end of the charging cycle of Ni-cd batteryb) throughout the servicing of lead acid batteryc) when the battery is over chargedd) all of the above

19. The strength of an electromagnet depends ona) No. of the turns of the coilb) Strength of rotation of the magnetc) Speed of rotation of the magnetd) All

20. The setting in vernier caliper indicatesa) positive errorb) negative errorc) no errord) all are false

21. The setting in the micrometer indicatesa) from rotary to reciprocatingb) from reciprocating to rotaryc) rotary to lineard) all the above

22. When a gear sector is engaged with a rack the motion will bea) intermittent rotaryb) reciprocatryc) intermittent straight line

23. The clamp shown in fig. Is known asa) strap clampb) adjustable clampc) finger clampd) universal clamp

24. Aviation ship is used for cuttinga) thick metal sheetb) heat treated Al. alloy and stainless steelc) only stainless steeld) any sheet metal

25. Setting in micrometer leads BL/3-5/P-4

26. Micrometer setting BL/3-5/P-5

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27. Micrometer setting BL/3-5/P-6

28. Headless grab screws is installed bya) allen keyb) special ratchet spannerc) suitable screw driverd) special tool

29. Milling machine isa) used for surface finishingb) used for sawing the metalc) used for grinding the metald) all

30. 25 division of vernier scale concides 24 cms of main scale and 1 cm in main scale is divide into 20 equal parts.a) 0.01 cmb) 0.05 cmc) 0.01 cmd) 0.1 cm

31. No. of threads per inch is measured bya) steel ruleb) screw pitch guagec) ring gauged) all

32. Decimal 29 is equivalent to binarya) 11101b) 101101c) 110101d) 101011

33. SCR hasa) 2 terminalsb) 3 terminals

34. The washer shown in the diagram isa) shake proof washerb) crinklec) springd) none

35. The figure shown is aa) counter sinkb) drillc) drill & reamerd) special reamer

36. In pitot and static system static vents and pitot vents are placed at separate location to preventa) position errorb) ice firmationc) all of the above

37. Difference of both pressure is measureda) altimeterb) ASI

38. The phenomenon which causes continuous spin of outer ring due to coincidence of rotor ring with outer gimble ring axis is called

a) gyro wanderb) apparent precessionc) gyro tumbling

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d) gimble lock

39. Altimeter consists of stack ofa) 3 evacuated capsuleb) 2 evacuated capsulec) barometric scale adjustmentd) all are correct

40. In an aircraft drawing the symbol indicates a) stainless steelb) brassc) plasticd) cork & fabric

41. Which of the following statement are associated with the term filleta) the space between the back of one teeth and the knee the following teethb) a bounded surface to eleminate and sharp cornerc) the relieved angular cutting edge at a tooth cornerd) the bottom surface of the

MARCH & OCT - 93

1. Normalizing of steel is done by heatinga) heating just above the critical point and cooling in air

2. In British system of electromagnetic flow detection is indicated bya) WFD b) EFD c)MFD

3. In british system dye-penetrant flow detection is indicated bya) PFDb) UFDc) MFD

4. Butyl rubber used fora) tyre and tubeb) seals and gasketc) a/c fuel tank liningd) none of the above

5. Dump flux used while welding with oxyacetelene flame will causea) porosity b) craterc) channeling

6. Alclad is aa) aluminium alloy sandwiched between for aluminium coating

7. 7075 – 0 indicatesa) full annealed condition

8. Which of the following revet does not required heat treatmenta) 2017b) 2117c) 2024

9. In oxyacetelene welding equipment oxygen and acetylene are identified by of 203

a) left and right hand threadb) color and length of cylinderc) diameter of the hosed) both a & b are correct

10. Cleaning of acrylic and rubber is done bya) MEKb) Aliphatic napthac) Aromatic napthad) Acetone

11. Elastometer rubber isa) rubber impregnated in metalb) shock absorber

12. NDT of aluminium alloy is done bya) penetrant methodb) zyglo methodc) X-ray methodd) Ultrasonic method

13. Heat treatment aluminium alloy is done bya) heating in KOH and NAOHb) heating above critical point and cool in air

14. UFD indicatesa) ultrasonic flow detectionb) radiographyc) dye penetrant flow detection

15. Welding for stainless steel the flame useda) carbursingb) neutralizingc) caldizing

16. Carbon in iron at normal temperature remains asa) ferriteb) dissolved iron matrixc) austenited) special iron matrix

17. For brazing the flame useda) oxitizingb) carbonizingc) neutrald) reducing

18. High carbon steel contains carbona) 0.50% - 1.5%b) 0.30% - 1.50%c) 0.50% - 1.05%d) 1.50% - 2.2%

19. Crack at the surface should be welded bya) butt weldingb) lap weldingc) fillet welding

20. In chalk test we useda) hot fluidb) cold fluidc) both d) none

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21. Al. alloy core with pure alluminium coating is knows asa) al cladb) purecladc) pure clad and electro statically preventived) all of the above

22. Bearing strength isa) the strength that resists a force that tends to tear it apart

23. In NDT X-Ray equipment are graded according to the a) volt – rangeb) electromagnetic radiationc) ampd) penetrating power

24. To improve the tensile strength, ductility and shock resistance, magnesium alloy castings normallya) case hardened b) solution heat treatedc) precipitation heat treatedd) solution heat treated

25. Thermistora) zero temp. coefficientb) variable temp. coefficientc) +ve temp. coefficientd) –ve temp coefficient

26. Circuit containing registor, capacitor, diode, semiconductor is a a) linear circuitb) non linear circuitc) bipolar circuitd) unipolar circuit

27. 1110101 is equivalent toa) 117b) 29c) 63d) none

28. In lead acid battery sedimentation occurs because of a) overchargingb) frequent charging and dischargingc) over discharging d) high rate of discharge

29. A circular mill isa) a circular whose diameter is 0.001”

30. If the bar magnet in the fig. Will be removed shown the electromagnetic induction will bea) oppose the emfb) act in same directionc) will not repel but attempt

31. Vent plug of Ni-cd battery should be cleaned bya) distilled water onlyb) distilled water and detergentc) hot water and distill waterd) detergent

32. Current is 2.5 amp, voltage 12v, used for 1 minute. How much energy it will consumea) 1800 Jb) 2 Jc) 60 Jd) 18 J

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33. Pizu electric effect is

34. In British system of drawing the inverted triangle gives a) important dimensionsb) heat treatmentc) surface finish

35. Baffles in hydraulic tank is given fora) providing an expansion tank is given forb) resisting fuel surging within the tankc) providing internal structural integrityd) preventing fuel overflow during refueling

36. In a blind revet the length between manufacture head to the end isa) grip lengthb) grip rangec) shank length of the revet

37. In a revet layout the shank diameter should bea) twice the thickness of the thicker sheetb) 1/8th thickness of the thicker sheetc) three times the thickness of the thickest sheet

38. In a bolt and nut assembly after applying troque, cotter pin hole is not aligning the bolt may bea) slightly tightened to next slotb) slightly loosened to next slot

39. A/C chains are specified bya) load carrying capacityb) pitch and number of linksc) both

40. Helicoil insert has a natch and tang along end toa) facilitate installationb) the removal of tang after it has screwed into the trapped thread hole

41. Unless specified the troque to be applied to a bolt and nut assembly shoulda) degreased dry and clean threadb) lubricated thread

42. Double dash rivet isa) 2117 rivetb) 2024 rivet

43. Crinckle washer is used fora) hard steel to take foodb) instrument mounting for loft load and electrical installation

44. Cotterpin for castellated nut is made offa) stainless steelb) corrosion resistant steelc) cadmium plated low carbon steeld) both a & c are correct

45. Gyroscope – the phenomenon which causes continious spin of outer ring due to coincidence of rotor ring with cuter gimble ring axis is called

a) gyro wanderb) gyro tamblingc) apparent precessiond) gimble lock

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46. Rate of turn indicatora) rate gyrob) tied gyroc) earth gyrod) free gyro

47. Difference of pilot and static pressure is measured bya) ASIb) Altimeterc) VSI

48. True airspeed of aircraft is maximum

49. Altimeter operation mechanism consists of a a) two aneroid capsuleb) three aneroid capsulec) adjustment for barometric pressure providedd) all

50. Free gyro hasa) the plane of freedomb) the planes are right angle to each other and three plane

51. Turn and slip indication operates respective bya) gyro onlyb) external force and gravityc) gyro and gravity

52. Acceptable deviation in compass from the equipmenta) 1 degree from the needle to the compassb) 2 degree from the needle to the compassc) 3 degree from the needle to the compass

53. Spherical roller bearing will takea) radial load heavyb) axial load slightlyc) both

54. Micron isa) millionth of meterb) thousandth of meter

55. A hole to be reamed should be drilled to undera) 0.001” – 0.002”b) 0.003” – 0.007”c) same size

56. Every third tooth of the hackshaw is made straight a) to give clearence for the cuttingb) repsaw tooth is provided

57. The vernier scale hasa) +ve errorb) –ve error

58. Least count is defined asa) one main scale division is divided into the total division of the vernier / thimble scaleb) 1 MSD – 1 TSD

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59. Least count of 50 divisions on the circle of micrometer whose pitch is 1mma) 0.01 mmb) 0.02 mmc) 0.5mmd) 0.002 mm

60. Backslash of a micrometer is caused due toa) manufacturing defectb) wear and tearc) wear on the nutd) all

61. Snap gauge is a a) go & no. go guageb) it will snap at preset torque loadc) guage which measure TPId) guage which measures outside diameter

62. Aviation snip used for cuttinga) stainless steel and aluminium alloy heat treated sheetb) chromium sheetc) heavy sheet metald) any sheet metal

63. What is the rmp of the gear having 150 teetha) 166.6b) .500c) 150d) 300

64. Which of the following is not contained generally in aircraft specification type date sheeta) empty weight of the aircraftb) useful load of A/Cc) payload of A/Cd) control surface movement

65. Rocker arm bearing isa) plain bearing

66. Fig. The drawing indicatesa) taper b) spot facingc) aluminium sheet

67. Hydrogen is given off duringa) the entire servicing of the lead acid batteryb) charging and dischargingc) at the competition of charging in Ni-cd batteryd) during charging only

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PAPER – II (JUNE – 1999)

1. The main memory of a computor isa) RAMb) ROMc) Hard discd) Micro processor chips

2. The binary 110 equivalent of 55 isa) 100011b) 110001c) 100001d) 110011

3. –T6 designation of Al-alloy indicatesa) solution heat treated and then artificially agedb) solution heat treated and then stabilizedc) artificially aged onlyd) solution heat treated and then cold worked

4. 0.10 mmis equivalent toa) 0.039”b) 0.041”c) 0.035”d) 0.045”

5. The major alloying element in 7075 Al-alloy isa) magnesiumb) siliconc) Mg and Sid) Zinc

6. The purpose of turnbuckle is toa) make minor adjustment in cable lengthb) adjust cable tensionc) both a & bd) none

7. A 7x19 cable is made up ofa) 7 strands of 19 wire eachb) 19 strands of 7 wire eachc) both d) none

8. Which one of the following is boots self locking nutFigure

a) –b) –c) –d) –

9. Identify the given toola) adjustable plierb) spring plierc) lever jaw wrench d) none

10. A double flare should be used on of 203

a) stainless steelb) nickel steelc) cast irond) Al alloy only

11. Bead width of bolt weld should bea) 2 to 3Tb) 3 to 5Tc) ¼ to ½ Td) 1⅓ T to 1½ T

12. In a fillet weld, the penetration requirements are a) 60 to 80% of the thickness of the base metalb) 100% of the thickness of the base metalc) 200% of the thickness of the base metald) 25 to 50% of the thickness of the base metal

13. In the fluerescent penetrant inspection, a) the defect will show the flow as a brilliant yellow greenb) the defect will show the flow as a light yellow greenc) the sound area will appear white (deep blue violet)d) the diffect will show as deep blue violet

14. In jacking of aircrafta) main wheels are raised togetherb) nose wheel is raised 6” above the groundc) nose wheel is raised for free movement of itd) none

15. Centre drill is used toa) make hole and reaming in one operationb) make hole and countersunk in one operationc) make taper holed) all of the above

16. For cast iron, the included angle of drill isa) 118ºb) 70ºc) 90ºd) 140º

17. Select the correct statementa) hand taps are available in two setsb) bottoming tap is used to smoothen the bottom of a blind holec) plug tap is used at the lastd) japer tap is used first

18. The external threads on a bar is made bya) tapsb) stockc) diesd) reamer

19. The defect in wheel nut is inspected bya) dye penetrant processb) magnetic particle inspectionc) eddy current testingd) ultrasonic testing

20. The voltage rating of fully charged cell of 20 Ni-cd battery is a) 1.8 to 2.1 voltb) 1.24 to 1.3 vc) 1.4 to 1.7 v

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d) 1.3 to 1.5 v

21. If the temperature of a confined liquid is held constant and its pressure tripled, the volume will bea) triple b) be reduce to 1/3rd its originalc) remain the samed) none

22. If the pitot head is blocked then which instrument is affected a) ASIb) Altimeterc) Turn & bank indicatord) Slip indicator

23. Which statement is correcta) QNE setting gives height above sea level of the airportb) QNH setting gives airfield elevationc) QFE setting makes the altimete read zero on landing at aerodromed) All

24. Through which material will magnetic lines of force pass the most a) copperb) ironc) aluminiumd) all are correct

25. Which symbol represent a variable resistora) 2b) 3c) 1d) all

26. With an ohmmeter connected into the circuit as shown, what will ohmmeter reada) 20 b) infinitec) 10 d) none

27. How can the state of charge of a Ni-cd battery be determined a) by measuring the specific gravity of the electrolyteb) by measuring chargec) by the level of electrolyted) all

28. Which statement concerning the depicted logic gate is true a) any input being 1 will produce 0 outputb) any input being 1 will produce 1 outputc) all input must be 1 to produce a 1 outputd) none

29. Zero fuel weight is thea) dry weight plus the weight of full crew, pax and cargob) basic operating weight without fuelc) maximum permissible weight of a loaded a/c including pax, crew, cargo without fueld) maximum weight of the a/c with crew, oil, pax, less fuel in wing tank

30. The empty weight of an aircraft is determined bya) adding the net weight of each weighing point and multiplying the measured distance to the datumb) subtracting the tare weight from the scale reading and adding the weight of each weighing pointc) multiplying the measured distance from each weighing point to the datum times the sum of scale reading less the tore

weight

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31. Unless otherwise specified, torque value for tightening a/c nuts and bolts relate toa) clean dry threadb) clean. Lightly oiled threadc) either a or bd) none

32. A fibre type, self locking nut must never be used on an a/c if the bolt isa) under shear loadingb) under tension loadingc) both tension and shear loadingd) subjected to rotation

33. Aircraft bolts are usually manufactured with a a) class 1 fit for the threadsb) class 2 fit for the threadsc) class 3 fit for the threadsd) class 4 fit, for the threads

34. Generally speaking, bolt grip length should bea) one and one half times the thickness of the material through which the extendb) equal to the thickness of the material through which they extend plus approximately one diameterc) equal to the thickness of the material through which they extendd) 2 times the diameter

35. A particular component is attached to the a/c structure by the use of an a/c bolt and a castleted tension nut combination, if the cotter pin hole does not align with the recommended torque range, a acceptable practice is

a) exceed the torque rangeb) lubricate the threaded section of the nut, bolt and torque c) change washers and try againd) change the nut

36. How is a clevis bolt used with a jork-end cable terminal secured a) with a shear nut lightened to a snug fit, but with no strain imposed on the fork and satefied with a cotter pinb) with a castle nut tightened until slight binding occure between the fork and the fitting to which it is being attachedc) with a shear nut and cotter pin or a thin self locking nut tightened enough to prevent rotation of the bolt in the forkd) all are correct

37. A bolt with an X (cross) inside a triangle on the head is classified as a a) standard a/c boltb) close tolerance bolt NASc) CRS boltd) Special bolt

38. The measurement reading on the illustrate micrometer isa) 0.2857”b) 0.2901”c) 0.2511”d) 0.2861”

39. A primary cause of inter granular corrosion isa) improper heat treatmentb) dissimilar metal contactc) improper application of primary d) none

40. Galvanic corrosion is likely to be most rapid and sever whena) the surface area of the cathodic metal is similar than surface area of anodic metalb) the surface area of the anodic and cathodic metals are approximately the samec) the surface area of the anodic metal is smaller than the surface area of the cathodic metal

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41. Jet fuel identifiers area) performance no. to designate the volatility of the fuelb) performance no. and are relative to the fuel performance in the a/c enginec) type no. with no relation to the fuel is performance in the aircraft engined) none

42. Brinell hardness testing is applicable toa) small part and high hardnessb) large part and small hardnessc) small part and small hardnessd) large part and large hardness

43. Identify the given toola) indicating snap gaugeb) indicating thickness gaugec) indicating depth gauged) none

44. Which one id incorrecta) ATA-62 communicationb) ATA-30 ice and rain protectionc) ATA-52 dcord) ATA-78 engine exhaust

45. What will be the speed of driven gear if driver gear is 120 rpm a) 60 rpmb) 120 rpmc) 100 rpmd) 240 rpm

46. Compound gear is used fora) better efficiencyb) better transmission of motionc) greater range of speedd) all

47. Mg-alloy used with other metal should bea) given two coats of zinc chromate and a coat of pressed vinylb) given one coat of zinc chromate and a coat of pressed vinylc) given two coat of zinc chromate and two coat of pressed vinyld) none

48. An automotive type flaring tool will produce a flarea) 37 degreeb) 45 degreec) 60 degreed) 30 degree

49. Color of AVGAS low lead fuel isa) died blue b) color lessc) died greend) none

50. With prepregsa) manual application not requiredb) has to be kept in freezec) both a & bd) none

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SUBJECTIVE

1. Write the contamination control of aviation gasoline

2. Sketch and identified ten types of rivets which are used in a/c application

3. An a/c with an empty weight of 21.000 pounds and an empty weight CG +32 was altered as followsa) two 18 pounds passenger seats located +73 were remandb) situation modifications were made at 77+ increasing weight by 17 poundsc) a sea and safety belt weighting 23 pounds were installed at +74.5 and

4. Write the basic principle and application of eddy current testing

5. What main items of inspection will be carried out when a/c

6. Sketch with neat and clean diagram of a micrometer and name various parts. Suffers from turbulance flow

7. Write the procedure of towing and parking of a heavy aircraftWrite short notes on (a) fixing of blust (b) process of corrosion control

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1. In dye penetrant test, the vol, of defect can be interpreted bya) staining routeb) staining extentc) staining speedd) all

2. The test sample which can be tested by making both probe simultaneously in opposite direction to detect flames on surfacea) flush butt metalb) thin sheet metalc) cast ingotd) none

3. During repair procedure of composite, part heat treatment is done fora) small disbondb) seal be smallestc) restore surface protectiond) none

4. When grain size of the steel will be smallesta) heated first below critical rangeb) heated just above critical rangec) below lower critical ranged) none

5. If a body is given shape and lorituation is exposed to uniform flow of incompressible fluid, each component of the force which the fluid exerts the body can be expressed as product of

a) areab) dynamic pressurec) Reynolds nod) All

6. PARAL KETONE is used for preventing corrosion of a) Mg alloy partsb) Welded steel structurec) Cables, ferros and non ferrosd) B & C

7. The process used for charging moisture extrapped in composite isa) radiographyb) ohmmeterc) laser holographyd) all

8. N.W.Va) strength of the compositor materialb) strength of the material and composing with chargec) strength of reinforcing fibred) none

9. AN flared tube fitting is made ofa) Alb) Cu base alloyc) Steeld) All

10. Correct statement regarding refueling isa) earthing is not requiredb) disconnect the earthing line first before disconnecting the fuelling nozzlec) if a/c is earthed, fuelling vehicle, doesn’t require earthing

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d) none

11. Scales are removed from lightly stressed steel parts bya) hard abrasive paperb) buffing wheelc) wire brushd) none

12. If you have some 178 rivet, above 3/16” in dia, that had been aged for the hours after quenchinga) you could use them frouding they have not exceeded 5 hours of ageingb) you could not use them because 178 rivets should be used within 10 minutes after quenchingc) you could use them provided they had not exceeds 3 hours of ageing

13. Flux from ferrous metals can be removed by usinga) 25% sol of silver nitrateb) no need of flux by welding ferrous metalsc) you have to remove flux from ferrous metals d) a wire brush

14. A flux for silver soldering is obtained by usinga) Zn Cl2b) Nitric acidc) Muriatic acidd) None

15. Welding of AC from welding of steel differs in thata) it is considered harder to weld because of high tempb) steel does not have a color change that is apparent in Alc) M.P. of Al is much lower than steel and the expansion is nearly three times as greatd) It is much easier to weld because a flux is used

16. What procedure is used to distinguish heat treatable alloys from non heat treatable alloysa) 10% solution of caustic sodab) 5% sol of muriatic acidc) Rockwell testd) 10% solof H2Sc

17. When welding various metals you may reduce the chances of during bya) preheating b) anodizing c) heat treatingd) clamping

18. Which of the follow of a/c parts or units should not be weldeda) items which are not responsive to heat treatmentb) plain carbon, Ni-steel of SAE 2300 seriesc) turn buckle barrel endsd) steel tubular members of basic structure

19. When welding a high carbon steel use a a) low carbon rodb) high carbon rodc) rod of either low or high carbon contentd) rod of intermediate carbon content

20. High carbon steel can be readily welded bya) are welding procedureb) oxidizing flame and high carbon rodc) neutral flame and high carbon rodd) carbonising flame and low carbon rod

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March – 1993

1. Mark the correct statementa) the weld should be taper off smoothly into the base metalb) the depth of penetration should be different to ensure fusion of the filler rodc) the height of the weld should be 1/8 inch above the base metald) the seams should be evenly spacod and as in 1

2. Mark the correct statementa) fiber lock nut should not be used on the place where vibration is moreb) fiber lock nut should not be used on the place where temp is above 250Fc) fiber lock nut should not be used on the place where there is relative motion between partsd) both b & c are correct

3. Al clad isa) coating of Al alloy on the pure Alb) coating of pure Al on the Al-alloyc) coating of pure Al on non-metald) none above correct

4. In SAE 2040, the last two digits indicatesa) percentage of alloying elementb) percentage of carbon contentc) number of carbon moleculesd) both b & c are correct

5. Parts should be normalized after weldinga) to relieve internal stressesb) to remove the surface scale formed during weldingc) to introduce slight amount of carbon to improve the surface harness of the weldd) to make improve mechanical property of the metal

6. Match the following:GEAR BEARING HARNESS TESTERa) bowel needle sparkb) ball Rockwell idlerc) idler ball Rockwelld) needle bowel ball

7. The bolts are manufactured ina) class 2 fitb) class 1 fitc) class 3 fitd) there is no fit for a/c bolts

8. Wrought iron is identified bya) red colored sparkb) straw yellow sparkc) white sparkd) none above correct

9. Which gage of telescoping gauge is identified by itsa) 1/16 to 6”b) 5/18 to 6”c) 5/8 to 6”d) ½ to 6”

10. Line used to show an edge which is not visible is a a) break lineb) hidden line

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c) imaginary lined) phantom line

11. When flaring Al-tubing for used with AN coupling nuts and sleeves, the flat angle should bea) 67b) 45c) 37d) 60

11. The dia of flexible hose for a/d plumbing is classified in size accordinga) cross sectional areab) inside diac) outside diad) both a & b are correct

12. Make an external thread which tool is useda) lapb) threaded spannerc) died) none above correct

13. Pulleys are normally made ofa) asbestosb) phenolic formaldehydec) micad) both a & b are correct

14. Function of turnbuckle is to a) adjust the cable tensionb) adjust the minor length of cablec) both a & b are correctd) as in a, & for frequently connecting & disconnecting the cable

15. Purpose of heat treatment isa) to improve electrical and mechanical propertyb) to relieve internal stressesc) to make material harder and strongerd) all above correct

16. To carry the petroleum and synthetic fluid which hose material is useda) Teflonb) Butylc) Buna-Nd) Synthetic

17. The value of induced e.m.f. depends ona) the speed of rotationb) the length of the magnetic fieldc) the number of wires moving through the magnetic fieldd) all above correct

18. In case of maltimetera) red lead indicating-ve terminalb) red lead indicating +ve terminalc) black lead indicating-ve terminald) black lead indicating +ve terminal

19. Mark the correct statementa) a fuse is a strip of metal that melts when excessive current flow through itb) a circuit breaker is device that stop current flow when it exceeds a pre-determined valuec) both a & b are correctd) A.C.B. is devised that melts when excessive current flow through it

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20. The specific gravity of electrolyte in incase of Ni-cd battery isa) between 1.240 to 1.300b) between 1.225 to 1.275c) between 1.225 to 1.300d) none above correct

21. Battery can be charged bya) constant current methodb) constant voltage methodc) both a & b are correctd) none above correct

22. Spray quenching is normally carried ona) large partsb) small partsc) almost Al-alloyd) as in a & c and minimizes distortion & aliviates quench cracking

23. Purpose of tempering is toa) reduce the softnessb) reduce the brittleness due to hardeningc) improve the softness/toughnessd) both b & c are correct

24. Corrosion on copper in indicated bya) white colorb) greenish colorc) blue colord) redish color

25. Monel is the alloy ofa) Cu-steelb) Ni-steelc) Inconeld) Chromel

26. Self locking nuts should be replaced whena) it is easily tightened by fingersb) its locking property decreasesc) its inside dia equal to outside dia of the corresponding bolt threadsd) all above correct

27. The length of tile is measured froma) tang to tipb) heel to tipc) tip to secreted portiond) none above correct

28. Water in the honey comb structure may be detected bya) floor ascent inspection methodb) ultrasonic inspection methodc) radiographic inspection methodd) eddy current inspection method

29. To transmit the rotating motion between the shaft and wheel and to allow parallel movement al the wheel at the same time, the type of key is used

a) woodruff keyb) flat saddle keyc) feather keyd) hollow key

30. The size of drill is indicated bya) letter ‘A’ to indicted smallest size

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b) letter ‘Z’ to indicated longest sizec) letter ‘z’ to indicated smallest sized) both a & b are correct

31. Minimum number of gear required to make a compound gear train isa) 3b) 2c) 4d) more than 2

32. Which statement is correct for stub tootha) stub tooth is thicker in proportion to its lengthb) it is used where more strength is requiredc) its operation is not as smooth as involutes toothd) all above correct

33. The transmit reciprocating motion into rotary motion, which type of gear normally useda) rack and sectorb) sector and gearc) rack and piniond) not possible with gear

34. Which statement is correct regarding shrunk rulea) it has no.4 graduationb) the inch marking on the faces are slightly longer than actual inchesc) it is made from 1/10 to 7/16 inch per ft. over sized) all above correct

35. Composite materials are used frequently in modern a/c. because ofa) high strength to weight ratiob) not corrodedc) reduced weard) all above correct

36. In order to locate a defect in a part which condition is necessarya) magnetic lines of forces must pass parallel to the defectb) magnetic lines of forces must pass perpendicular to the defectc) induced magnetic flux in more than one directiond) both b & c are correct

37. ATA 100 specification system, 32 indicatesa) oxygenb) indicating and recordingc) landing geard) light

38. Color of dye used in pendants dye process isa) brownb) redc) whited) none of the above

39. In case of ultrasonic transmission method, which statement is correcta) in pulse transmission there is only one peakb) as in (a) and if there is only one peakc) in pulse transmission there is two peakd) as in (c) and if there is another peak between transverse & bottom it indicate flaw

40.To case of chromium plating the current density should bea) between 150-200 amp, per sq. ftb) between 150-200 amp, per sq. ftc) between 100-250 amp, per sq. ftd) between 100-200 amp, per sq. ft

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41. Coating of aluminium metal in powder process is calleda) sheradizing b) granodizingc) anodizingd) colorizing

42. In balanced pressure type torcha) O2 and acetylene comes at the same pressureb) O2 and acetylene comes at the different pressurec) As in (a) and have equal sized) None above are correct

43. Radiographic inspection are used to defecta) internal and external crackb) potesityc) water in the honey comb cored) all above correct

44. In flexible back bladea) only the part where the teeth are cut is hardenedb) only the end position where holes are drilled is hardenedc) as in (a) and rest of the blade remaining softd) both a & b are correct

45. Half round file is suitable for filinga) irregular shapeb) large internal radiusc) both a & b are correct

46. Which type of punch should be used to take out rivets, split pins, shacka) drift punchb) pin punchc) center punchd) prick punch

47. Mark the correct statementa) coating of pure Al on Al-alloy is called ??b) titanium has low strength to weight ratioc) brass and bronze comes under copperd) both a & c are correct

48. Which instrument is used for measuring the roughness of surfacea) surface gaugeb) surface plate with v-blockc) profilometerd) pyrometer

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SEP-1993SUBJECTIVE QUESTIONS:

1. Knurling is thea) rolling depression on the soft materialb) rolling depression on any kind of materialc) as in (b) and is used to provide proper gripd) none above correct

2. To make stretch in the direction of its widtha) use straight peen hammerb) use cross peen hammerc) any kind of hammer can be usedd) use ball peen hammer & apply blow with an angle

3. Protective jaw caps are used with vicea) to protect the vice jawb) to protect the parts from becoming damagec) to apply constant and even pressure on the partsd) all above correct

4. To make a V-shaped groove the chisel commonly used isa) round nose chiselb) flat chiselc) cap chiseld) diamond point chisel

5. To locate the center on a round block usea) surface gaugeb) center square headc) hermophrodite caliperd) all

6. Which cutting fluid is used on load steala) mineral land oilb) soluble oil & (a ) is correctc) sulfurized oild) all above correct

7. Mark the correct statementa) linear sidewise motion is known as backlashb) reaming should be down after drillingc) as diametral pith increases, braze of tooth decreases, no. of teeth increasesd) all above correct

8. The given figure indicate the symbol ofa) Rubberb) cast ironc) steeld) brass

9. The lines which is shown here is indicating:a) redb) whitec) brown & yellowd) purple

10. The size of the flexible hose is determined by its of 203

a) outside diab) inside diac) No. of plies to make hosed) Cross sectional area

11. Mark the correct statementa) dia of bolt in 1/16th and length in 1/8th

b) dia of bolt in 1/8th and length in 1/16th

c) dia of rivet in 1/16th and length in 1/32thd) both a & c are correct

12. To prevent sparkinga) connect the condenser in series with the partb) connect the condenser in parallel with the partc) connect the condenser in any desire positiond) both b & c are wrong

13. When capacitor is connected in parallel, which formula is used determining the total capacitancea) 1/C=1/C1 + 1/C2 + 1/C3b) C=C1 + C2 + C3c) C=1 / (C1+C2+C3) x C1+C2+C3d) None above correct

14. Piezoelectric effect is found ona) rochelle saltb) phenolic materialc) quanty and rachelle saltd) both a & b are correct

15. Conductor having length of 2 ft and resistance 2 ohms, now if we reduce its length just half of original, then resistance will be

a) just doubleb) just halfc) just equald) none above correct

16. Which instrument is utilizing both dynamic and static air for its operationa) Altometerb) VSIc) ASId) Both a & c are wrong

17. The sensitively of altimeter is increased by increasinga) No. of gears and sectorsb) No. of gears and pinionc) No. of capsulesd) Both a & c are correct

18. Mark the correct statementa) a suspended magnet always assume a north and south positionb) inductors when connected in parallel the total inductance is the south their valuesc) inductive reactance is inversely proportional to inductance & frequency d) all above correct

19. Which instrument is used for checking the insulation resistancea) ohm meterb) meggerc) as in (a) and maghometer

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d) all above correct

20. D’ Arsonavel ammeter is useda) for measuring ammeter A.C. currentb) for measuring D.C. currentc) for measuring A.C. voltaged) for measuring D.C. voltage

21. Mark the correct statementa) specific gravity reading between 1.300 to 1.275 indicates a high of chargeb) specific gravity reading between 1.275 to 1.240 indicates a high of chargec) specific gravity reading between 1.240 to 1.225 indicates a medium charged) both a & c are correct

22. In triode tubea) crid is placed between place & cathodeb) plate is placed between grid & cathodec) cathode is placed between grid & plated) none above correct

23. The given figure indicatesa) NPN transistorb) PNP transistorc) As in (a) and arrow indicating emitterd) As in (b) and arrow indicating emitter

24. In heat treatment of material T8 indicatinga) solution heat treatment and then stabilizedb) solution heat treated and artificially edged and then cold workedc) solution heat treated and cold worked & then artificially edgedd) solution heat treated, and then artificially edged

25. In Rockwell hardness tester there is two weight except weight pan of machine, one is red and other is black. Now choose correct answer

a) when there is no load machine applied a load of 60 kgb) where black wt. Is on the pan, machine applies a load of 150 kgc) as a & b and when red wt. Is on the pan machine applies a load of 100 kgd) as a,b, & c and black wt. Is always used with red wt.

26. Titanium is heat treated for the purpose ofa) thermal hardening to improve strengthb) annealing after hot working or cold workingc) relief of stresses setup during cold workingd) all above correct

27. Filler are added in resin toa) increase strengthb) as in a & b, also control viscosity & wtc) increase pot, lifed) as in (b) also control viscosity and wt

28. Mark the correct statement regarding composite materiala) carbon/graphite is stronger in compressive strengthb) color of kevler is brownc) S-glass is borosilicate glassd) All above correct

29. Mark the wrong statementa) nomex is the widely used core materialb) urothane can not be cut by hot wire cutterc) carbon is identified by its black colord) ciramic fibre are in not used with metal matrix

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30. Stress corrosion occurs as a result ofa) combined effect of tensile stress & lack of uniformity in alloy structureb) relative motion between two partsc) combined affect of tensile strength and corrosive environmentd) combined effect of compressive stress and corrosive environment

31. Which is the correct statementa) gasket are always used with backup ringb) gasket are stationery sealsc) gasket can be used as an oil seald) both b & c are correct

32. A bolt having part no. AW 3 DD 6A having following meansa) it indicates that bolt dia is 3/16”, length 6/8” & material 2024b) it indicates that bolt dia is 3/8”, length 6/16” & material 2024c) it indicates that bolt dia is 3/8”, length 6/16” & material corrosion resistant steeld) it indicates that bolt dia is 3/16”, length 6/18” & material corrosion resistant steel

33. AW 300 series is used for indicatinga) a/c screwsb) a/c nutsc) a/c washersd) a/c bolts

34. The length and dia of DZUS fastener is measured jina) length 1/8” and dia 1/16 inchb) length 1/16” and dia 1/8” inchc) length 1/8” and dia 1/100 inchd) length 1/100” and dia 1/16” inch

35. A/C cables are normally made ofa) carbon steelb) CRSc) Galvanized steeld) Both a & b are correct

36. Mark the correct statementa) Hermaphrodite caliper is used as a marking gauge in layout workb) In commercial normalizing quenching is normally carried out in airc) The color of spark in gray cast iron is red at the point of contactd) All above correct

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MARCH – 1992

1. The given figure indicates a) leader lineb) phantom linec) center lined) datum line

2. The figure indicatesa) steel b) rubberc) plasticd) both b & c are correct

3. In ATA 100 specification system chapter 61 is indicatinga) rotarsb) propellersc) wingsd) powerplant

4. The title block having following contentsa) drawing numberb) date of dispatchc) No. of partsd) All above correct

5. The diagram indicatinga) inventorb) transformerc) step down transformerd) step up transformer

6. The figure indicatesa) D.C. motorb) A.C. motorc) D.C. motord) A.C. motor

7. The most commonly used synthetic material for making flexible hose isa) Buna-Nb) Butylc) Both a & b are wrongd) Both a & b and Teflon

8. The given figure indicating fault which occur during the bending of tubing which is correct statementa) kinked bendb) wrinkled bendc) corrugated bendd) flattened bend

9. The flaring tool produces a flare ofa) 35b) 35 to 45c) 30 to 37d) 35 to 37

10. Bolts are inspecteda) magneticallyb) zyglo

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c) as (a) and fluorescentd) all above correct

11. The place where external tension loads are to be affecteda) use clevis boltsb) use eye boltsc) use close tolerance boltd) both b & c are correct

12.Wing type bolts self locking nuts are made in range of a) No. 6 upto ¼”

13. Mark the correct statement after referring the figurea) 0.0105b) 0.1005c) 0.0015d) 0.0115

14. The material used for making the tap isa) stainless steelb) hard tempered steelc) cast irond) tool steel

15. The included angle of center punch isa) 80b) 75c) 60d) 90

16. Mark the correct statementa) double cut means two different strokes at angle opposite to each otherb) surround cut is line medium smoothnessc) double cut and second cut is samed) all above correct

17. Name the kind of flux used with soldering the brassa) zinc chlorideb) zinc carbidec) rock waxd) resin

18. The minimum radius that can be measured by fillet gauge isa) 3/64”b) 1/64”c) 1/32” – ¼”d) 1/16”

19. Accuracy of square gauge can be checked bya) V-blockb) Revel protector

20. What is the function of ratchet step in micrometera) prevent turning of the thimbleb) prevent the use of too much pressurec) as in (b) and prevent further turning of the thimble after correct pressure has appliedd) all above correct

21. If a micrometer having negative error then the amount of errora) must be added to the final readingb) must be substracted from the final reading

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c) must be corrected before taking any other readingd) both b & c are correct

22. Precision instruments are normally made ofa) tempered steelb) hemonic metalc) nichrome steeld) stallite

23. The given figure is ofa) universal clampb) strap clampc) finger clampd) adjustable strap clamp

24. Hollow reamers are also calleda) fluted chucking reamerb) shell reamerc) jobbers reamerd) none above correct

25. Which statement is correcta) single thread lead equal to the pitchb) in double thread, pitch is double of the leadc) in triple thread, pitch is triple of the leadd) both b & c are correct

26. During spark test of nickel, which color of spark will producea) orangeb) whitec) redd) straw yellow

27. function of disintegrator is toa) make hole without producing chipsb) make hole of any shapec) as in a & b and also make hole in any kind of materiald) check the accuracy of surface plate

28. Mark the wrong statementa) for insite check, the penetrate dye process is usefulb) crack is indicated by a red stain termed by the dye in case penetrate dye processc) radiographic inspection is not suitable for surface crackd) the eddy current inspection offers improved sensitivity as compared other NOT best

29. The function of torch tip is to control thea) amount of heatb) flow of gasesc) both a & b are correctd) all above wrong

30. Galvanizing is the process of coating zinc is normally carried out on a) Al-alloyb) Iron and steelc) Steel partsd) Mag-alloy

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GENERAL PAPER - 1991

1. ATA 100 specifications chapter 31 indicatinga) Ice & cain protectorb) Indicating & recordingc) Landing geard) Flight controls

2. Circular magnetization is used fora) detecting cracks running perpendicular to the axis of the partb) detecting cracks running parallel to the axis of the partc) detecting cracks which is al. angle to the axis of the partd) b & c are correct

3. Mark the correct statementa) fatigue cracks are normally formed on parts that are in services but not on now partsb) fatigue cracks give sharp clear patternc) fatigue cracks are normally found on L/G torsion link legs attachment pointd) all are correct

4. This figure is telling abouta) internal hexhead boltb) clevis boltc) eye boltd) counter shunk head bolt

5. Intergranular corrosion occurs due toa) lack of uniformity in the alloy structureb) as in (a) and is difficult to detect in its original statec) combine effect of tensile stress and corrosive environment

6. Mark the correct statementa) As length increases for a given size of wire the resistance increaseb) As size of wire increase for a given wire length resistance decreasec) As size of wire decrease for a given wire length resistance decreased) Only c is wrong

7. A resistor if second color hand is brown thena) it will indicate the age of tolerance of brownb) it will indicate the ohmic value of brownc) no toleranced) it will indicate the number of zero to be added

8. This symbol representing thea) variable resistorb) fixed resistorc) both a & b are wrongd) movable resistor

9. In pentudea) Screen grid is placed between suppressor grid and control gridb) Control grid is placed between suppressor grid and screen gridc) Suppressor grid is placed in between control grid and screen gridd) There is no suppressor grid

10. Zener diode are used fora) voltage regulationb) some times called break down diodec) both a & b are correctd) converting ac into dc with mechanical aid

11. As per given fig.a) arrow is indicating direction of conventional current flow

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+

b) A-N type, B-P typec) Both a & b are correctd) As in A and A-P type, B-N type

12. Voltage induced by generator is maximum when loop isa) perpendicular to the lines of forceb) parallel to the lines of forcec) coming away from lines of forced) going towards the line of force

13. As fig. Is indicatinga) delta connecting inverterb) wye connecting inverterc) delta connecting alternatord) wye connected alternator

14. A two pole alternation having 1800 rpm has freq. Ofa) 60 cpsb) 120 cpsc) 30 cpsd) 90 cps

15. Inverter are producing current at frequency ofa) 300 cpsb) 400 cpsc) 200 cpsd) 450 cps

16. Ball bearing can takea) radial load onlyb) axial load onlyc) both radial and axial loadd) it takes thrust only load

17. The minimum thickness which can be measured by fealer gage isa) 0.0020 inchb) 0.0015 inchc) 0.015 inchd) 0.001 inch

18. Steel containing 0.7 to 2% carbon is known asa) plain carbon steelb) medium carbon steelc) high carbon steeld) cast iron

19. Which statement is correct for flame hardeninga) normally carried out in shafts, chainsb) normally carried on parts where only a portion is required to be hardc) the main disadvantage of this method is that the time required for he is much mored) all are correct

20. Which statement is correct in case of induction hardeninga) heating the metallic substance by means of alternating magnetic fieldb) the depth of the case depends upon frequency intensity of the em field but not on time periodc) with this method property of core material is not affectedd) all are correct

21. Which statement is true regarding litaniuma) Ti is approx. 70% heavier than Al & 50% lighter than stainless steelb) Fatigue resistance of Ti is greater than Al and less than steelc) Corrosion of Ti is uniform andd) Both a & b are correct

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22. Magnetic isa) the process in which the parts are magnetizedb) the process in which the parts are magnetized out the magnetic power used in select the flow is fluorescentc) as in (b) and will glow under black lightd) all are wrong

23. In lead acid battery the +ve plate and the –ve plate is made up ofa) +ve plate is made up of lead while –ve plate is made up of lead sulphate b) +ve plate is made up of lead while –ve plate is made up of lead peroxidec) +ve plate is made up of lead peroxide while -ve plate is made up of sulphated) –ve plate is made up of lead peroxide while +ve plate is made up of sulphate

24. Fuses are normally made up of metal having low melting point statement is truea) low melting point material is alloy of tin and bismuthb) if fuses made of copper than it is called current limiterc) as a & b and fuses are installed in the circuit so that all the current must pass through itd) only (a) is correct

25. Micro switches are mostly used in a/c, making contact open or close movement is abouta) 1/8 inch or lessb) 1/6 inch or lessc) 1/16 inch or lessd) ¼ inch or less

26. Which equation is used to find out capacitive reactancea) Xc=2fcb) Xc=1/2fcc) Xc=2/fcd) Xc=1/4fc

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GENERAL PAPER – 1987

1. In gas welding of oxygen and acetylene regulators hasa) left hand thread and right hand thread respectivelyb) right hand thread and left hand thread respectivelyc) both have left hand threadd) both have right hand thread

2. Pull through rivets are fabricated in two common head stylesa) universal head/protruding headb) brazier headc) 100 countershunk headd) both a & c are correct

3. A rivet head having raised cross indicatinga) 5056 Tb) 2024 Tc) carbon steeld) corrosive resistant steel

4. Which turn lock fastener contains stud assembly grammet & receptaclea) air lockb) cam lockc) DZUSd) Both b & c

5. Mark the wrong statementa) helicoils are made of 18-8 stainless steelb) screws comes in An 500 NAS 200 seriesc) dia of nut is measured in 16th of an inchd) lockwashers should be used only with secondary structure not with present

6. A/c bolts having two dash on its head indicatinga) corrosion resistantb) Al-alloyc) 2024 boltsd) both b & c are correct

7. Corrosion on Mg-alloy is indicatinga) white spotsb) green spotsc) blueish spotsd) yellow spots

8. Solution heat treatment and then cold worked is indicated bya) T2b) T3c) T4d) T5

9. Match the followingTITANIUM BEARING GEARa) Ni-Cr steel Non-magnetic Teethb) Teeth Ni-Cr Non-magneticc) Non-magnetic Ni-Cr Teethd) Teeth Ni-Cr Non-magnetic

10. During carburizing which gas is emitteda) carbon di oxideb) carbon mono oxidec) carbon tetra chlorided) none above correct

11. Cold water quenching is normally carried out for the parts produced from of 203

a) tubingb) forgingc) extrusiond) all above correct

12. Arrange the metals are put their increasing order of conductivitya) Iron <Al < Nl < Cub) Al < Iron < Ni < Cuc) Iron < Ni < Al < Cud) Iron < Ni < Cu < Al

13. In instrument range marking a yellow color indicatesa) permission limitb) cautionary range and take off rangec) operation permissible for few timed) operation with certain precautions

14. Mark the correct statementa) instrument panels are normally made f non-ferrous materialb) panels are usually shock mounted to absorb low frequency, high amplitude shocksc) No. of shock mount used are depend on length of the unitd) All are correct

15. Nickel Alloy chisels are normally sharpened bya) grinderb) filing (slowly to avoid sparking)c) both a & b are correctd) cannot be sharpened

16. Screw driver can be classified according to it’sa) shapeb) type of bladec) as A & blade lengthd) both B & C are correct

17. Buttress threads are normally useda) where a thread requiring great strength in one direction onlyb) to vice, jacks etcc) where it is necessary for transmitting power in either direction d) only c is wrong

18. In transition fita) shaft is longer than the holeb) shaft is smaller than the holec) shaft and the hole are approx of same sized) all are wrong

19. There is a difference between AN & AC fitting which is correcta) AN has gray color while AC has yellow colorb) AN has the gray color while AC has the blue colorc) AN is longer while AC is shorterd) As in B and AM has 35 angle & AC has 37 angle

20. Mark the correct statementa) parker-kalon Z-type sheet metal screw is a self tapping screwb) parker-kalon Z-type sheet metal screw are blunt on the endc) As in B nad are normally used for temporary attachmentd) All are correct

21. Cotter pins are normally made ofa) cadmium plated high carbon steelb) cadmium plated low carbon steelc) corrosion resistant steel

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d) both B & C are correct

22. How much thread should be exposed after lightening the turn bucklesa) atleast three threadsb) less than three threadsc) not more than three threadsd) not less than three threads and not more than five threads

23. In annealing parts most be cooled ina) still allb) furnancec) brined) oil

24. Mark the correct statementa) impact resistance decreases as metal goes softer and softer & viceb) impact resistance increases as metal goes softer and softer & vicec) impact resistance increase as metal goes harder and harder & viced) impact resistance decrease as metal goes harder and harder & vice

25. Match the following a. Electron A – Al b. Alduminium B – Mg c. Duralumin C – Al d. Al clad D – Al

a) a-A, b-D, c-C, d-Bb) a-B, b-D, c-C, d-Ac) a-C, b-D, c-A, d-Bd) a-D, b-C, c-A, d-B

26. In brinell tester dia of the ball isa) 10mm and apply pressure of 8000 kg for ferrous metalb) 0.3937 inch and apply pressure of 8000 kg for ferrous metalc) 10mm and apply pressure of 500 kg for non-ferrous metald) all are correct

27. In case of torque wrench, thea) the basic formula for use with extension is Tw=TexA/Bb) the basic formula for use with extension is Tw=TwxA/Bc) the basic formula for use with extension is Tw=TwxB/Ad) the basic formula for use with extension is Tw=twxB/A

28. Match the following a. DD A – 2024 b. C B – corrosion resistant steel c. Zygle C – colored lacque

d. D – Al alloy

a) a-A, b-D, c-C, d-Bb) a-D, b-A, c-C, d-Bc) a-D, b-B, c-C, d-Ad) a-A, b-B, c-C, d-D

29. Lock bolts are normally used fora) L/G, fitting, fuel line fittingb) Primary controlsc) Wing splice fitting, skin splice plates longeronsd) Both a & c are correct

30. The most commonly used composite material isa) Kevlar

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b) Carbon/graphitec) Fibre glassd) Boron

31. Kevlar is identified by it’sa) black colorb) yellow colorc) white glaming colord) brown color

32. Thread running at 45 from warp is known asa) weftb) biasc) selvage edged) none of the above

33. MEK is useda) for cleaning dust, grease from composite componentb) for cleaning all partsc) for cleaning any partsd) for cleaning electrical equipment

34. Mark the incorrect choicea) a fine Al screen may be laminated under the top layer of fabric dissipate electrical chargeb) microballons are mixed with regin to add strengthc) PVC can be cut with a hot wire cutterd) Todlar is a layer of plastic coating which serves as an addition moisture barrier

35. Variation in uniformity on the cylindrical surface can be checked bya) DTTb) Center squarec) Square gaged) Hermphrodite caliper

36. Mark the correct statementa) letter A on the drill indicted smallest size while letter Z indicated the largest sizeb) letter Z on the drill indicated smallest size while letter A indicate the largest sizec) the algebric difference between main limit and the basic size is low as lower deviationd) both B & C are correct

37. The pressure angle of a gear teeth isa) the angle between the tangent to the pitch circle and the perp. Line the contact point of the gear teethb) the angle between tangent to the line of contact perp. To the pitch circlec) the angle between the line perp. To the pitch circle and line of contact d) all the wrong

38. Which formula is used for calculating the inside dia. Of an internal geara) Ng – Np/2cb) N – 2/DAc) PD – 2/DPd) Ng – Np/2Pe) Ng – Np/DP

39. Trammel is also calleda) circle makerb) dividerc) beam compass

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d) both b & c are correct

40. When thimble makes one complete revolution it moves on the sleevea) 0.40 inchb) 0.25 inchc) 0.025 inchd) 0.0025 inch

41. Surface plate is made ofa) Cast toonb) Granitec) Nimonic alloyd) Both a & b are correct

42. Vice can be classified according toa) reference numberb) length of the jawc) weight of the viced) both a & b are correct

43. Parcoluburizing is carried out ona) Iron and steelb) Mg-alloyc) Al-alloyd) All above are wrong

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SEPTEMBER 1994

1. The head fig. Shown asa) square head b) center headc) pretractor headd) none of the above

2. Aviation snaps are used ona) heat treated Al alloy sheetb) stain steelc) fibred) all of the above

3. Bolder used for electrical connections has the M.P. rangea) 100 degree to 200 degree Cb) 100 to 300 degreec) 300 – 600 degree Cd) 200 – 300 degree C

4. The type of chisel shown in fig. isa) cape chiselb) diamond pointc) found nosed) none of the above

5. Helical grars are used fora) transmit motion to shaft at an angleb) transmit motion to shaft which are perpendicular togetherc) to scarry larger loadd) none of the above

6. The type of gear shown in figa) helical gearb) spur gearc) internal geard) none of the above

7. The heat conductor available during all features in aircraft used isa) copper b) aluminiumc) brassd) silver

8. The symbol 4. indicatesa) internal threadb) external threadc) tap boldd) none of the above

9. The fig. Shown isa) major dia, effective dia, pitchb) effective dia, major dia, axisc) major dia, minor dia, axisd) core dia, pitch axis

10. The law concerning to figa) kichhoff’s law

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b) junction rolec) current roled) a,b, & c are correct

11. The kichoff’s law for voltage of circuit in figa) E=itrl+i2r2-i3r3b) E=ilrl+i1r2+i3r3c) E=ilr2+i2r2+i3r3d) E=(r1+r2+r3) (i1+i3)

12. The binary equivalen of 29 isa) 11101b) 10101c) 10011d) 11111

13. An altimeter consist ofa) two aneroid capsuleb) pressure cutting knob for adjusting barometric pressurec) three aneroid capsuled) all of the above

14. The potential difference between point a & b current in the circuit shown in the figa) 12A, 8Vb) 8A, 12Vc) 8A, 24Vd) 12A, 0V

15. Most headless notch screws are turned bya) screw driverb) Phillips screw driverc) Internal screw driverd) Allen wrentch

16. The component shown in fig.a) open end wrentchb) box and wrentchc) combination wrentchd) flayer and wrentch

17. The line is shown in figa) central lineb) extension linec) datum lined) none of the above

18. The bolt shown in figa) Al alloy, close tolerance boltb) Carbon steel, close tolerance boltc) Corrosion resistance steel, internal wrentching boltd) Corrosion resistance steel, close tolerance bolt

19. The bolt shown in figa) C steelb) Anodized Al alloyc) CRSd) A & C are correct

20. SCR isa) four junction diodeb) three junction diodec) two junction forward biased with reverse biased

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d) b & c are correct

21. The triode consists ofa) anode, grid, heaterb) plate, grid & heaterc) anode, plate, grid heater, & cathoded) plate, cathode, heater & fine mesh of wire between plate & cathode

22. The zenor diodea) is used as rectifierb) is used for voltage regulationc) is used for motor protection & in clippin circuitd) both b & c

23. The component shown in figa) pluge gaugeb) go & not go gaugec) ring gauged) none of the above

24. The joint shown in fig. Isa) lap jointb) butt jointc) single rivets butt jointd) corner joint

25. The fitting shown in fig. Isa) elbowb) reducerc) universald) plug

26. The tarque wrench isa) flexible beamb) right beamc) ratchet typed) dial indication type

27. The hammer shown is fig a) straight peenb) ground peenc) ground edged) flare face

28. The most accurate system for drill size isa) friction (1/16 inch – 3 and ½ inch)b) 1/63 inch to 1/6c) a to z letter systemd) no 80 to no. 1 no system

29. In a vernier scale 24 division are equal to 25 division of vernier scale, 1 centimeter of main scale is divided 20 equal parts and the least count

a) 0.001 cmb) 0.002 mmc) 0.02 mmd) 0.009 cm

30. In vernier macrometer 9 parts of main scale is divided into 10 parts of vernier scale the main scale has the graduations of 1mm find the length count

a) 0.01 cmb) 0.001 cmc) 0.09 mm

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d) 0.009 mm

31. To shut the welding torcha) cylinder valve should be closer firstb) accetelene cylinder valve is close firstc) both are close simultaneouslyd) accetelene cylinder pressure is reduced

32. The component shown in figa) flangeb) couplingc) spacerd) a & b

33. The drawing symbol of given if fig. Indicatesa) splind shaftb) gearc) tooth roolerd) none of the above

34. The figure shown in fig.a) worm gearb) gear rackc) rack pinond) none of the above

35. Hydrogen is given offa) during all stages of battery porveningb) when battery is over heatedc) during charging operation of the batteryd) during discharging operation of the battery

36. Magnesium is:a) susceptible to corrosionb) corrosion resistant and light weightc) high tendency to crackd) a & c are correct

37. When switch Mg is open voltmeter indictor 1.5 v and when close indication 1.35V current is lamp. What is the internal resistant of battery:

a) 1 ohmb) .15 ohmc) 1.35 ohmd) 1.50 ohm

38. The altemeter is checked by when barometer is not availablea) micromonometerb) vaccum chamber

39. Static vents in pitot static system are located witha) from at aluminate iceb) to aluminate ice formationc) to aluminate position errord) all of the above are correct

40. Toflon hose isa) high strength

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b) high temperature resistancec) a & b are correctd) flexible

41. X-ray used in indity inspectiona) have short wave length high protecting powerb) have a long wave low protecting powerc) a & b are correctd) none

42. The given drawing symbol in fig. a) accentricityb) symotryc) concentricity

43. The cause of buckling of sheet isa) small holeb) long holec) hammeringd) heat

44. The repair a crack the joint is to be formeda) lap jointb) butt jointc) tea jointd) corner joint

45. Identity the figa) potentiometerb) resistorc) auto transformerd) iron transformer

46. Identify the fig.a) A & C are variable resistor and B & C are fixed resistorb) A & C are fixed resistor and B & C are variable resistorc) A & B are fixed resistor and C & D are variable resistord) None of the above

47. Identify the fig.a) AN standard steel boltb) Re-worked boltc) Al alloy boltd) Closed tolerance bolt

48. Identify the fig.a) re-worked boltb) special boltc) magnetically inspected boltd) aluminum bolt

49. Identify the figa) dry cell batteryb) Ni-cad batteryc) Lead acid batteryd) None of the above

50. In floroscent dye penetrant test the colour of the light use in the part inspecteda) green color in black lightb) green color in white lightc) ultra violet in white light

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d) red color in white light

51. Identify the figa) point, face, edgeb) face, heal, edgec) edge, face, heald) heal, face, edge

52. Identify the fig.a) anchor nut with double legb) anchor nut with single legc) anchor nut at cornet legd) none of the above

53. Identify the figa) cylinderb) conicalc) rectangulard) circular

54. Mark the correct statementa) diode is used as a rectifierb) tiode is used as a rectifierc) diode is used as a amplifierd) all of the above

55. Identify the figa) gear and pinionb) rack and gearc) worn and worm geard) none of the above

56. The identical insulated wire coils are hung from air to that the facing each other and supplied with same directing A.Ca) both are attracted to each otherb) both are repelledc) clockwise rotationd) anticlockwise rotation

57. Identify the fig.a) improper upsettingb) buckling bar not in placec) rivet driven too muchd) over sized rivet

58. Which of the following has negative coefficient of resistancea) thermistorb) transistorc) semi conductord) resistor

59. In a 4 stroke cycle the spark plug fires for everya) 4 revolution of crank shaftb) 2 revolution of crank shaftc) 1 revolution of crank shaftd) 360 degree revolution of crank shaft

60. If a wire having a resistance of 9 ohm is increase its length twice, then new resistance isa) 1 ohmb) 8 ohmc) 6 ohmd) 4 ohm

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61. If resistor of 30 ohm are connect and battery voltage is 2v then a meter readsa) 1/10 Ab) 3/10 Ac) 7/10 A

62. Identification of titaniuma) sparkb) not standing and making in glassc) acid bestd) both a & b are correct

63. Annealed metal isa) to softb) low strengthc) relieved internal stressesd) all above are correct

64. Reading of inside macrometer shown a figa) .527b) .025c) 0.475d) 2.015

65. Calculate the reading shown in the figa) 0.2507b) 2.507c) 0.250d) 1.200

66. Calculate the reading in figa) 0.1001b) 0.250c) 0.250d) 1.200

67. Identify the drawing symbols givena) normal C,B, push pull C,B, push pull C,Bb) automatic C,B push C,B, push pull C,Bc) push pull C,B, push C,B, push pull C,Bd) automatic reset, push reset, push reset pull off

68. Barcol tested is sued fora) steelb) Al alloyc) Titaniumd) As in (b) and copper

69. Rockwell tested measure a) resistance to penetrationb) diameter of impressionc) size of identificationd) none of the above

70. P-N junction is used asa) rectifier b) amplifierc) oscillatord) none of the above

71. Cleaning of titanium surfacea) iron scrappersb) steelc) mild aspiration or hand plashed with aluminum

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d) all of the above

72. The NPN transistora) flow of electrons from emitted to collectorb) holes move from collector to emitterc) flow of electron from base to emitterd) flow of electron from emitter to base

73. In triode grida) controls the electron flow cathode to plateb) resource space chargec) it increase amission of electrone from cathoded) prevent secondary emission

74. Al alloys are welded witha) oxidizing flameb) reducing flamec) neutral flamed) reducing flame but in first flame is neutral and then reduced

75. Brace and bronse are welded witha) oxidizing flameb) neutral flamec) reducing flamed) reducing flame but first the flame is neutral and then reduced

76. Fig shown in 40 tool is used fora) for internal measurementb) measuring hole diameterc) cutaide measurementd) both a & b are correct

77. The check interior surface condition of cylinder and surface instrument used isa) boroscopreb) fluroscopec) endoscope or introscoped) all of the above

78. The primary is subjected to 220 v and secondary is step down to give an output of 11v and primary circuit is 5 amp and secondary current is 90 amp the step down transformer

a) 30b) 40c) 0d) 90 efficiency

79. Mark the correct statement in figa) A-redial load B-radial load and thrust loadb) A-thrust load, B-radial loadc) a & b thrust loadd) a & b radial load

80. Reading shown in figa) 0.257b) 0.270

81. Radiography depends ona) size of & shapeb) X-rayc) Thickness of material d) All of the above

82. Bavel gears used for:a) transmission of loads for between surface at angles to each otherb) for a variation of speed

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c) in speed readingd) a & c are correct

83. Component shown in figa) universal wrenchb) spanner wrenchc) open wrenchd) none of the above

84. The tools shown in figa) torque wrenchb) tension c) allen wrenchd) none of the above

85. The drawing shown in figa) universal socket jointb) flex in socketc) socketd) none of the above

86. The D.P. in a gear indicatesa) no of teeth per inchb) size of gear teethc) both a & b are correctd) none of the above

87. The C.P. of bavel gear isa) teeth per inchb) the distance from the center of our teeth to another teeth measure pitch circlec) the distance from the centre one teeth to center of next teethd) none of the above

88. The binary expression for 296 isa) 101011101b) 100101000c) 111001100d) 110010111

89. The nd. of T.P.I. are measured bya) screw pitch guageb) SWG (standard wire gage)c) Thickness guaged) None of the above

90. The output of an OR gate will be givena) when all the input are energizedb) when all the inputs are zeroc) anyone of the input is energized

91. Computer consist ofa) printer, decode, memoryb) input, output, C.P.Uc) input, output, printerd) none of the above

92. The decimal no. for 10111011101 isa) 1502b) 1500c) 1501

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d) 1600

93. The drawing symbol shown in figa) fixed capaciterb) variable capaciterc) variable resisterd) fixed resistor

94. O-rings are checked for internal cracks bya) 4 power magnifying glassb) by rolling on inspection conec) by rolling on inspection doweld) all of the above are correct

95. Memory of computer area) Rom, C.P.U. ALUb) Rom, Ram, Promc) ALU, Rom, Ramd) None of the above

96. Stress corrosion occurs main ona) magnesium alloyb) aluminum alloyc) stainless steeld) both b & c

97. Purpose of using flux in welding isa) to reduce oxidationb) to provide flow to the molten metalc) to increase the boundingd) all of the above are correct

98. Optical instrument used to inspect the interior structure of a component isa) fluroscopeb) foroscopec) indoscoped) all of the above

99. The sketch shown in figa) buttreus threadb) acme threadc) v-threadd) square thread

100. The method of temper steel depends upona) type of steelb) size of steelc) density of steeld) all of the above

101. The reading shown in the fig on the instrument isa) 1.318 inchb) 1.314 inchc) 2.300 inchd) 3.150 inch

102. In computers hard disk and floppy disk area) different in usedb) similar but hard disk can store more than floppy diskc) similar but hard disk can store less than floppy diskd) none of the above are correct

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103. the reading shown in fig.49a) 2.500 inchb) 0.250 inchc) 0.257 inchd) 0.200 inch

104. In a fig.50 the logic symbol indicatesa) AND gateb) NAND gatec) XOR gated) None of the above

105. In a fig. 51 the logic symbol indicatesa) NAND gateb) OR gatec) NOT gated) XOR gate

106. In the case of circuits ohm’s law hold fora) peak values of voltage and currentb) effective value of voltage and currentc) instentenneous value of voltage and currentd) all of the above are correct

107. In a purely inductive circuit the currenta) lags behind the voltage by / 2b) loads the voltage by II/? Capacitive circuitsc) is in phase with the voltaged) legs behind the voltage by II/2 at high frequency

108. The magnetude of the induced emf produced in all coil when a magnet is inserted in to it does not depend upon thea) no of turn in the coilb) reactance of the coilc) magnetic moment of the magnetd) speed of the rotation of magnet

109. Chocks is used as resistance in practical inductive reactance in choke and transformera) D.C circuitb) A.C circuitc) A & b are correctd) Full wave rectifier

110. An A.C series circuit contains 4 ohms resistance and 3 ohm inductive reactance what is the impedance of the circuita) 1 ohmb) 5 ohmc) 7 ohmd) 7/R ohm

111. The tool shown in the fig.52 isa) Slip joint plierb) Diagonal cutting plierc) Vise gear plierd) Long nose plier

112. The sketch 52 indicatesa) all grains punchb) prick punch

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c) pin punch / drift punchd) coner punch

113. Name of the tools shown in the fig isa) universal jointb) socketc) socket and universal jointd) knuckle joint

114. The reading shown in micrometer isa) 0.175 inchb) .175 inchc) 1.65 inchd) 1.35 inch

115. Purpose of tool shown in the sketch isa) being the typing processb) supplements in tapper tabc) cut butt threads to the bolting or a blind boltd) both a & b are correct

116. The purpose of ruller hole in the sketch is toa) prevent strain at the intersectionb) preventc) provided) all of the above are correct

117. The arrow shown at the tool isa) cutting angleb) cutting edgec) rivetd) cutting drill

118. Indicates on the tools area) thread shank fillerb) tap, cutter, pilotc) drill cutterd) none of the above

119. The gage shown in the sketch used for checkinga) sheet on plateb) average terminatec) squared) none of the above

120. Sketch indicates in fig.53a) NPN transistorb) PNP transistorc) Semiconductor dioded) Universal transistor

121. The symbol indicates fig. 54a) motor onlyb) generator onlyc) either motor or generatord) none of the above

122. The sketch fig 55 indicatesa) hingeb) turn bucklec) clevis boltd) eye bolt

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123. Pretting corrosion normallya) occur around rivets in a skinb) indicates by dart depositesc) occur in only moleculesd) a & b are correct

124. The NDT check inspection is made in white light and dye used isa) gray b) redc) black d) all are correct

125. Composite materiala) have reduced wearb) do not corrodec) have high strength to weight ratiod) all above are correct

126. The main control unit of computer is present ina) VDUb) CPUc) Keyboardd) Hard disk

127. Identify:a) threaded shank, body, pilotb) mandrel, cutter, locaterc) tap, Cutter, Pilotd) none of the above

128. While treating for magnetic testing it was found non magnetic, in nitric acid it was found rapid action, greenish bluea) nickel steelb) 18-8 steelc) moneld) CRS

129. Analog computer isa) more correct than digital computerb) less accurate than digital computerc) both a & b are correctd) none of the above

130. In computer machine language isa) high level languageb) low level languagec) very high level languaged) none of the above

131. Decimal equivalent to binary number 110 isa) 2b) 3c) 6d) 9

132. Aluminium alloy can be heat treateda) solution heat treatmentb) precipetation heat treatmentc) bothd) artificial aging

133. In NDT inspection, performance of magnetic particle inspection can not effected bya) cadmium

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b) copperc) tin & zincd) all of the above

134. The transferring metal from one object to another by chemical or electrical wings is done to protect the base metala) against corrosionb) increase strength to protect the base metal against chemical reactionc) weard) all the above are correct

135. To improve tensile strength, ductility and shock resistance, magnesium casting are normallya) case hardenedb) solution heat treatmentc) precipetation heat treatmentd) none of the above

136. Hydrogen is given off:a) in electrolyteb) lead acid batteryc) in over heated conditiond) after fully charged condition in Ni-cd battery

137. As per ATA 100, identification of a/c electrical cables, letter and size are marked a) in the middleb) side by sidec) prefix & suffixd) none of the above

138. In fig. 56 indicatesa) OR gateb) AND gatec) NOT gated) None

139. In modern a/c most popular heat treated aluminum alloy used in structural appliationa) alloy 2024b) alloy 5054c) alloy 5003d) alloy 7075

140. A coil is helped with a plain horizontal to certain surface and a bar magnet is dropped vertically downwarda) the magnet will fall with constant acceleration equal to ‘G’b) constant accelaration greater than ‘G’c) constant accelaration less than ‘G’d) non uniform accelaration less than ‘G’

141. In computer memory store measured bya) byteb) powerc) both a & bd) none of the above

142. The thickness of conducting and non conducting is done bya) micrometerb) eddy currentc) ultrasoundd) caliper

143. Evidence of corrosion on copper is indicated bya) red spot on the surface steel

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b) green spot in the surfacec) grey spot on the surfaced) none of the above

144. Evidence of corrosion on Al, alloy is indicated bya) more shining portion near the surface areab) grey spotc) pitting on surfaced) power forme) all

145. For high Al alloy the more suitable welding isa) seam weldingb) spot welding or butt weldingc) electric resistance weldingd) all of the above

146. To measure skin thickness of hollow tubular member is normally done bya) by distructing the tubeb) by micrometer tubec) eddy current

147. The NDT radiography method the density meansa) degree of blackness

148. The computer mark the storage devicea) VDUb) Printerc) Moused) Floppy disk

149. Expand the term Ram while loss the term ‘Ram’ meansa) random access memory

150. Which language is the oriented languagea) pascal b) basicc) fortrand) cobol

151. The third generation computera) intergretted circuit are usedb) microprocessor are usedc) semitransistord) all of the above

152. The unit of the memory isa) buteb) bitsc) nibhlesd) all

153. Expand the ??? basica) beginners all purpose symbol instruction code

154. The principle had carrying member in a composit structure isa) fibresb) matrixc) adhesived) rasin

155. Intraply hybrid composites means of 203

a) inforcing material of same fibre in different layersb) reinforcing material woven from two more fibre typesc) reinforcing material different indifferent layerd) none of the above

156. Metal matrix composite is a recent composite material where ina) resin in reinforced with metalb) resin and fibre and reinforced with metalc) fibre are reinforced with metal during melton staged) all of the above are correct

157. Replacement of honey comb core segment to the existing honey done with help ofa) film form adhesiveb) freeing adhesivec) epoxy resin with fibred) all of the above are correct

158. Two wires each other meter long are kept at a distance of 0.02 & 16.2 ampire current is flowing through each wire, then force the wire will be

a) attractive if the direction of the current flowing throughb) repulsive if direction of current will be samec) repulsive if direction of current will be reversed) both a & c are correct

159. One micron isa) 10 cmb) 1.0 cmc) 10 mmd) all of the above

160. In a vernier caliper, there are 10 vision on the vernier on the main scale is divided in 10 parts while measuring in zero of the vernier lies should of 1.8 cm and 4th division coinsided with a main scale division the length is

a) 1.84 cmb) 1.04 cmc) 1.86 cm

161. When the plate current is 16ms, the number of electron flowsa) 10-8 electron / secb) 10?? Electron/secc) 10 electron /secd) none of the above

162. Six equal resistance of 1 ohm each are connects in a circuit ABCDEF, the resistanceoffered by the combination, if the current A and leaves at B is:

a) 2.5 ohmb) 3 ohmc) 1.5 ohmd) none

163. A torch bulb when cold has 1 A resistance, it draws a current when growing from a source of 3v, the resistance of bulb isa) 5b) 10c) 6d) 8

164. In a electron magnetic induction unit of magnetic flux isa) weberb) ampere x meterc) Newton/meterd) Newton

165. Mark the correct statement isa) rheostat is a variable resister used to vary amount of the circuit

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b) potential meter is a variable resister used to vary amount in the circuitc) potentiometer has two terminalsd) none of the above are correct

166. A lead acid cell containsa) positive plates cooted with lead aproxideb) liquid electrolyte consists of the sulphate and waterc) negative plate made of leadd) both a & c are correct

167. Mark the correct statement isa) AND GATE is one whose output is energized when all energizedb) OR GATE is one whose output is energized when more of the energizedc) A GATE is a logic circuit with one input are many outputd) None of the above

168. In a double thread screwa) pitch is twice the loadb) load is twice the pitchc) lead is twice the pitchd) thread depth is measured parallel to the

169. Indication for the dull drilline isa) rough finished holeb) high temp of the drillc) low drilling speedd) all of the above

170. Identify the sketch fig. 57a) NAND gateb) OR gatec) NOT gated) None

171. Identify the sketch fig. 58a) NPNb) PNPc) Both a & bd) None

172. In NDT magnetic particle inspection cannot be done if the coating ofa) copper b) tinc) nicel & chromiumd) zinc

173. In inspection of a material the material in non magnetic, nitric and rapid action shows greenish blue mark side fora) carbon steel magneticb) nickel steelc) moneld) 18-8 steel

174. The used of grid in a triod isa) to reduce space charge regionb) to control the electron flow between the cathode, and the anode c) none of the aboved) a & b are correct

175. The semi conducter having high negative co-efficient isa) thermister

176. D.P indicates in a gear for a) distance between two teeth

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b) height of the teethc) pitch circled) all of the above

177. Diode triode or transistor works ona) ohm’s lawb) donot obey ohm’s law

178. Change 1010101 in decimala) .85b) .65c) .111d) none of the above

179. PN junction is knows asa) forward biosb) reverse bios

180. In a figure 59a) completely dimensional partb) perpendicularlyc) symmetryd) parallelision

181. Counter sunk rivet:a) when riveting different layers of sheets

182. In a step down transformer the input voltage is 220v and current 5A and the output voltage is 11v and the current is 90A, the calculate the efficiency of the transformer

a) 30%b) 90%c) 60%d) 70%

183. When 2 conductor of 1 mt in length carrying a current at 2 amp are .025 meter a part from each other:a) conductor carrying current in the same direction will attractb) conductor carrying current in the opposite direction will attract c) no effectd) none of the above

184. As sketch of fig. 60a) internal threadb) thread barelc) external threadd) bending

185. Unix is thea) Double operating unitb) CAD & record of engineering organizationc) None of the above

186. The most powerful computer isa) micro computerb) super computerc) mini computerd) laptop computer

187. Matrix is used to:a) transfer stress to fibre

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b) take stress from the fibrec) increase the hardness of adhesived) none of the above

188. Catalyst in a composite acts as:a) hardenerb) curing agentc) to increase the property of resind) none of the above

189. The tool shown in the fig. 61 isa) bore and wrenchb) double edge off set box wrenchc) flare nut wrenchd) combination wrench

190. The tool shown in the fig. 60 isa) strap wrench

191. The fig. 62 shown in is:a) rehausted an p.c. diodeb) rehaustace and phot diodec) rehausted an silicon control rectifier d) none of the above

192. Fig. 8-35 page 182 shop theory is:a) colletb) rack checkc) tapd) all

193. Fig. Shown in 63 the process isa) the riveting with the riveting gun on the rivetedb) buckling bar on the rivetc) dimpling the rivet

194. Fig 5.4 of page 107 and 108 of shop theorya) plug gaugeb) ring gaugec) snap gauged) none of the above

195. The difference between digital and analog computera) analog computer has large memoryb) digital computer cost more and in comparatively difficult to programc) analog computer is less accurated) b & c are correct

196. Excess size of computer depends upona) software usedb) frequency & signal receivedc) to software & hardware bothd) hardware

197. The greatest memory of which device:a) Winchester type device disksb) Tape type recording instrumentc) Floppy disk unitd) None of the above

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198. Which are related to the memory:a) hard disk b) keyboardc) CD-Romd) Monitor

199. In a given circuit 1.4A current flowing from point A. what is the current at point Ba) 1.4Ab) 1.0c) .6 Ad) 1.2A

200. EDP stands for in computer:a) electrical data processingb) electronic data processingc) entry data processingd) electronic discrete program

201. Electronic digital computer performs :a) mathematical calculationb) data processingc) strees data in given instructiond) all of the above are correct

202. (010100)2 convert into octal:a) (24)8b) (15)8c) (26)8d) (50)8

203. This bolt in fig. 64a) internal wrenching boltb) clevis boltc) Al alloy close tolerance bolt used with greased) As in © and cadmium plated

204. Fillers is:a) epoxyb) cellulosec) polyesterd) boron

205. Arrange the following:a) Reduz i. Celluloseb) Struz ii. Fillerc) epoxy iii. Thermoplatingd) polister iv. Thermocoating

206. Which statement is true for leveling:a) leveling of large a/c is critical than lighter a/cb) leveling is done normally on longitudinal axisc) leveling is done more accurate on lighteral axisd) none of the above

207. For jacking the a/c:a) normally the jack points are given in all a/cb) three points on a/c for jacking is provided to stabilize the a/c about three pointsc) jacking points are located in relation to C.G. positiond) all the above are correct

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208. Fuel lines are identified by:a) color code and geometrical signb) color codec) color code and named) all the above are correct

209. In ATA specification the electrical cable no is instructed asa) extent ion tab a. prefix suffixb) pound split die b. in middlec) bottom tap c. side & sided) a & b are correct d. all of the above

210. Thread in deep holes are cut by:a) extension tapb) round split diec) bottoming tapd) a & c are correct

211. Tool shown in fig. 65:a) allen wrenchb) offset screw driverc) Philips screw driverd) Common screw driver

212. Punch shown in fig. 66a) pin punchb) aligning punchc) starting punchd) prick punch

213. Tool shown in fig. 66a) combination wrenchb) box and wrenchc) open end and box wrenchd) double ended wrench

214. Size of flat cold chisel is identified by:a) length of cutting edgeb) width of cutting edgec) weight of the chiseld) all of the above are correct

215. File shown in fig. 67a) square file, taperb) knife filec) pillar filed) none of the above

216. If twist drill is not printed clearly, it can be checked bya) drill size guage no. system on left and fraction system on rightb) drill size guage with no. system on right fraction on leftc) SWGd) By micrometer

217. Micrometer reading in fig. 68a) 0.588”b) 0.578”c) 0.568”d) 0.563”

218. Mark correct statementa) A transistor connected in common-base configuration has a low input registance and high output resistance

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b) At transmeter connected in common omitter configuration a medium input resistance and a output resistancec) The input and output signals of a common omitter are out of phased) All the above are correct

219. The arrow head on the transistor symble always pointing the direction ofa) hole flowb) electron flowc) electrons are the majority carrierd) holes are the majority carrier

220. The energy loss in a transformer is due to:a) heating the coilsb) eddy current in the corec) low permeability of ferro magnetic substanced) both a & b are correct

221. A computer stored instruction in:a) English languageb) Decimal number systemc) Octal number systemd) Binary number system

222. An input unit of a computer communicatea) between operate and computerb) between memory with printerc) between cpu with monitord) between output and computer

223. Assembler is:a) personalb) programmec) languaged) none of the above

224. If a current is a passing through the conductor the magnetic field induced depends on which law:a) laplace’s lawb) biotsavart’s lawc) faraday’s lawd) none of the above

225. In welding scatter is:a) scattering of small partials around a finished weldb) small holes on the welded structurec) depositing of excess weldd) none of the above is correct

226. A circuit carrying resistance, inductor, capacitor, across the circuits each carring low, when the circuit is shorted in inductor then what is the value of capacitor:

a) 10vb) 10 root 2c) 10 root 2vd) .28v

227. Electric are weldinga) it emits ultravioletb) infrared rays at high current flowc) poisonous gasd) all above are correct

228. soldering of Al alloy differs from other metala) low temp settingb) very high temp, settingc) no flux is usedd) flux is applied with solder

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229. For dye penetrant test mark the correct statement:a) large penetrating time larger crackb) small penetrating time smaller crackc) larger penetrating time smaller detectsd) all the above are correct

230. In X-rays:a) if thickness is more the blacking is less long on the filmb) thickness of metal as referred to hose densityc) sensitivity of the radiography is determined by TQTd) all of the above

231. Mark the correct statementa) corrosion on carbon steel is in form of brown, red colorb) corrosion on C.B.S. in sheets dimeling is the necessary

OCTOBER / SEP – 1996

1. In transformers, mark the correct statement:a) if any of windwings are shorted, it is easy to detect by measuring resistanceb) in case if shorted windwing, the transformer becomes hotc) if there is shorted windwing, the output voltage will be very highd) both b & a are correct

2. If the frequency of the primary voltage of a transformer is increased from 50Hz to 60 Hz, keeping peak voltage same, the voltage in the secondary will

a) increase by a factor of 60/50b) increased by a factor of 50/60c) be unpredictable for want of sufficient datad) not change

3. ‘n’ identical cells, each of the emf E and internal resistance r, are connected in series to form closed circuit. An ideal voltmeter connected across ‘n’ cells will be

a) NEb) Zeroc) (n-N)Ed) N(1-N/n)E

4. Very high insulation resistance of electric cable is measured bya) meggarb) high range ohm meterc) ammeterd) voltameter

5. When batteries are connected in parallela) voltage increases, capacity remains the sameb) voltage remains same but capacity increasesc) voltage depends upon plate aread) no effect on either power or voltage

6. To increase the voltage of batterya) cells are connected in seriesb) cells are connected in parallelc) plates are connected in seriesd) electrode area is increased

7. Voltage drop across a conductor of known resistance depends ona) current flowing inside the circuitb) voltage of the circuit

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c) the amount of thickness of wire insulation

8. E-glass isa) also known as electric glassb) also known as borosilicate glassc) has low strength and weight ratiod) all

INDIAN INSTITUTE OF AERONAUTICSComputers

Objective Questions:

1. A computer in a/ana) mechanical deviceb) electrical devicec) electronic deviced) electromechanical device

2. A “flow chart” is a a) step wise representation of a programmeb) a systematic pictorial representation of a programmec) is a kind of programme written in high level languaged) either a & b

3. In order to drew a flow chart we used this symbola) for input/outputb) for processingc) for start/setupd) for decision making

4. A digital computer can be operated witha) only numerical datab) only non numerical datac) both numerical and non numerical datad) neither numerical nor non numerical data

5. Algerithm is a:a) pictorial representation of a programmeb) a stepwise systematic representation of a programmec) high level language to represent a programme systematicallyd) assembly language to represent a programme systematically

6. An integrated circuit isa) a complicated circuitb) much costlier than a single transistorc) an integrated deviced) fabricated on a tiny silicon chip

7. Analog computers area) slower than digital computersb) less accurate than digital computersc) costlier than digital computersd) powerful than digital computers

8. The decrease between a computer and calculator isa) the former is programmable and later is non programmableb) the former can process data and the later cannotc) the former includes control unit and the later does notd) the former can be note book type but the later cannot be of non portable type

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9. ENIAC stands ofa) Electronic numerical integrator and computerb) Electronical numerical integrator and calculatorc) Electronic numerical integrator and calculatord) Electronic numeric integrator and computers

10. ENIAC isa) a first generation computerb) a second generation computerc) a third generation computerd) a fourth generation computer

11. The main component used in 2nd generation computer wasa) vaccume tubesb) transistorsc) Icsd) Mocroprocesor

12. A microprocessor is a/ana) integrated circuit fabricated on silicon chipb) the processing unit of the computerc) the brain of the computerd) all of the above

13. The latest of the following:a) laptopb) super computerc) desk topd) mainframe

14. The most powerful of the following:a) Minicomputerb) Microcomputerc) Mainframed) Supercomputer

15. Main difference between PC/ATI and PC/XT are:a) PC/AT has much more memory than PC/XTb) PC/AT has much more speed than PC/XTc) PC/AT has multi terminal facility and PC/XT has only single terminal facilityd) PC/XT has multi terminal facility and PC/AT has single terminal facility

16. Binary equivalent of 0.625a) 0.010102b) (0.101)2c) 0.11002d) 0.010112

17. If the inputs of a gate are A and B and its output is A+B the gate is:a) OR gateb) AND gatec) X-OR gated) X-NOR gate

18. The given truth table is forA B C1 1 10 0 10 1 01 0 0

a) XOR gateb) NOR gate

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c) NAND gated) OR gate

19. 2 complement of the binary digit isa) 01b) 1c) 10d) 0

20. “XOR” gate is:a) a parallel switching circuit with exclude conditionb) series switching circuit with exclude conditionc) parallel switching circuitd) series switching circuit

21. Find the odd man outa) ALU, memory, countersb) CU, floppy disket, registersc) Control unit, MPU,d) ALU, auxiliary memory

22. The CPU of the 4th generation computer isa) An IC chip using VLSI technologyb) Microprocessorc) Both a & bd) None of the above

23. INTEL is a company involved in the manufacturing ofa) printersb) storage devicesc) IC chipd) None of the above

24. Bill gates is the chairman ofa) IBMb) Microsoftc) Inteld) Motorola

25. The company Microsoft is involved ina) making of computer hardwareb) making of computer softwarec) both a & bd) none of the above

26. The fastest of the following isa) 80286 processorb) 80386 processorc) 80436 processord) Pentium processor

27. The main memory of the computer isa) RAMb) ROMc) Hard diskd) CD

28. RAM isa) volatile semiconductor memoryb) read/write memory

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c) random access memoryd) all of the above

29. ROM isa) read memoryb) write memoryc) both a & bd) none of the above

30. EPROM can be erased bya) sodium lightb) uv raysc) Electrical pulsesd) Either UV rays or electrical pulses

31. The fastest memory of the followinga) RAMb) ROMc) Cached) Hard disk

32. The main memory of a computer is located ina) the hard discb) compact diskc) floppy diskd) none

33. ROM isa) volatile semi conductor memoryb) non volatile semi conductor memoryc) magnetic memoryd) all of the above

34. The processing of the CPU is in the order ofa) millisecondb) microsecondc) nanosecondd) megasecond

35. DRGM isa) Semi conductor memoryb) Volatile memoryc) Has to be coefficiated with the data after a certain interval of timed) All of the above

36. 1KB is equal toa) 1000 bytesb) 2 bytesc) 1000 MBd) none of the above

37. A nibble is equal toa) 8 bitsb) 4 bitsc) 2 bitsd) 16bits

38. The fastest component of the computer isa) CPUb) Computer memoryc) Storage devicesd) Input/output devices

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39. Locate the odd man outa) hard diskb) floppy diskc) magnetic taped) compatt disk

40. Compact disk is a a) semi conductor deviceb) magnetic devicec) optical deviced) none of the above

41. Locate the odd man outa) OBRb) OMRc) OCRd) MICR

42. Floppy diskett is a :a) EPROMb) RAMc) EEPROMd) Flexible storage media

43. The slowest of the following isa) hard diskb) floppy diskc) CDd) Magnetic tape

44. CPROM is released bya) –b) infrared lightc) electrical packaged) by appropriate programming only

45. Vol storages are those from where data are losta) when the programme is overb) with respect to timec) when the power is shutoffd) all the above except c

46. Locate the odd man outa) light penb) plotterc) moused) joystick

47. The “printed document” in computer terminology is termed asa) soft copyb) hard copyc) firm copyd) live copy

48. The display of MONITOR of a computer system is mostlya) semi conductor displayb) LED type displayc) LCD type displayd) Electron beam type

49. Choose the correct statement among the followinga) Line printer is non impact printer

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b) LASER printer is a non impact printerc) DOT matrix printer is non impact printerd) Character printer is faster than line printer

50. Printer is connected througha) parallel portb) serial portc) both a & bd) none of the above

51. The screen in the laptop computer isa) CPTb) LCDc) Semi conductor displayd) All of the above

52. Which of the following is fixed disk drivea) hard disk driveb) floppy disk drivec) winchaster disk drived) CD-ROM drive

53. Modem is ana) input deviceb) output devicec) input/output deviced) none of the above

54. Locate the odd man outa) Dot matrix printerb) Inkjet printerc) Chain printerd) Drum printer

55. Optical scanner is aa) input deviceb) output devicec) input/output deviced) none of the above

56. A software is aa) set of programmesb) set of instructionsc) all of the aboved) none of the above

57. Disk operating system isa) a system softwareb) software environmentc) software utility packaged) a high level language

58. Computer virus is aa) software programmeb) hardware programmec) machine languaged) assembly language

59. Assembly language isa) low level languageb) high level languagec) machine language

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d) all generation language

60. Which of the following language used memoriesa) machine languageb) assembly languagec) high level languaged) all generation language

61. Which of the following is a scientific languagea) COBOLb) ADAc) FOPTRANd) BASIC

62. Which of the following is not a languagea) FOXPROTb) LISPc) Cd) VISUAL C++

63. Pick the odd man outa) DOSb) UNIXc) WIN-95d) DBASE

64. A package is a a) softwareb) set of instructionc) a programmed) all of the above

65. Windows 3.1 is a/ana) operating systemb) operating environmentc) packaged) language

66. Which of the following is not a high level languagea) basicb) Cc) Assembly d) Cobol

67. Which of the following is not a high level computer languagea) windowsb) visual c++c) corald) pascal

68. DOS stands fora) data operating systemb) disk operating systemc) diode operating systemd) none of the above

69. Unix is aa) a softwareb) a programmec) multiuser operating systemd) all of the above

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70. Assembler isa) a softwareb) a translatorc) a programmed) all the above

72. High level language area) machine dependentb) machine independentc) language in which programme is done in 1 & 0d) b & c

73. Interpreter in computer field is aa) softwareb) floppyc) hardwared) the special electronic circuit which translate high level to low level

74. Internet system is based ona) WAN systemb) LAN systemc) Mainframe computer systemd) Many computers connected to a other computer

75. GUI stands fora) graphical user interfaceb) graphical user internetc) graph & user interfaced) graph & user internet

76. Y2K problem is aa) software problemb) hardware problemc) data problemd) all the above

77. Virus affectsa) hardwareb) softwarec) both a & bd) none of the above

78. Anti virus software isa) dreaded softwareb) software to scan & remove softwarec) packaged) none of the above

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paper 2

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