ADVANCED METALURGY

1. Titanium in small quantities is added to aluminium-copper alloys before

pouring for the purpose of – Grain refinement.

2. Method most widely used for production of metal powders for use in

powder metallurgy – Crushing using impact.

3. The structure of eutectoid steel – Purely cementite.

4. The most ductile materials are usually – Face centered cubic lattice.

5. Ferromagnetic alpha iron changes to paramagnetic alpha iron at – 770 C.

6. Amorphous material – Glass.

7. Killed steel’s are those steels which – are allowed to be deoxidized in the

laddle with silicon and aluminium.

8. Aluminium alloy is employed for transportation applications primarily

because of its – low density.

9. Magnesium is extruded and not rolled because it has – low melting point.

10. Steel is melted in the foundry in a - arc furnace.

11. Coke to metal ratio in the charge of a cold blast cupola operating with

indegeneous high ash coke is of the order of – 1: 10.

12. The specimen in Charpy test is supported as – Simply supported beam.

13. Antiarch is a – process for making porous moulds.

14. In case of a captive foundry – all the castings are produced are consumed

in the main product of the factory.

15. Lead is alloyed with copper to – improve machining properties.

16. Polysters belong to the family of – Thermosetting plastics.

17. The property of a material which allows it to be drawn into a small

section is called – ductility.

18. Hologram is – three dimensional view of an object.

19. Diamagnetic material: Copper: :Paramagnetic material: Aluminium.

20. What is not identical between an atom and an isotope – Mass Number.

21. The unit of Radioactivity is – Curie.

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22. In grey cast iron, carbon is present in the form of – Flakes.

23. The chemical used for generating acetylene is – Calcium carbide.

24. Gas chromatography is used to separate – mixtures of volatile organic

liquids.

25. Ammonium cyanamide is a (an) – Fertiliser.

26. The density of oxygen is – More than air (16)

27. Liquid acetylene is – Explosive.

28. Which of the following acid is used for the etching of glass –

Hydrofluoric acid.

29. Following are the semiconductors – Selenium, Gallium arsenide,

Carborundum.

30. Dalton’s law of partial pressures is applicable to a mixture of – Carbon

dioxide and carbon monoxide.

31. Which of the following alloying element is added to steel to increase its

corrosion resistance – Chromium.

32. Ultra-violet rays are used for the treatment of water known as –

Disinfection.

33. Water with least contamination can be obtained from – Springs.

34. The lift of balloon least depends on – relative humidity of air.

35. Evaporation from the surface of a liquid can be explained by – Maxwell’s

theory.

36. The average velocity of the molecules in a gas in equilibrium is – Zero.

37. Maraging steels are widely used in – Nuclear power plants.

38. In cast iron less than 2% of the carbon can remain in solution and the

excess carbon separates out during solidification to form graphite.

39. White ice is – Formed due to presence of dissolved air, gases and

impurities.

40. Salino meter measures – Density of brine.

41. Which of the following metal has face - cantered cubic structure – Gold.

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42. Noduler iron has low – Melting point.

43. Dielectric strength of a material is – Capacity to withstand high voltage.

44. Yellow colour on a pattern indicates – Surface to be machined.

45. A Kentometer is a manometric device used for measurement of vacuum.

46. The binding material used in cemented carbides is – Cobalt.

47. 6-4-2-5 high speed steel contains 6 percent of – Tungsten.

48. Which metals are most susceptible to hydrogen embrittlement – Both

BCC and HCP.

49. Radio carbon dating is used to find the age of - Fossils.

50. Addition of Alum increases – Acidity of water.

51. In Orsat’s apparatus the first gas to be analysed is – Carbon dioxide. This

apparatus is used to analyze the gas by volume.

52. The total no of semiconductors in Periodic table is – 13.

53. Seasoning of timber is done to – reduce moisture content.

54. The hardness of water can be reduced by – Zeolite Process.

55. Polythene is a polymer of – Propylene.

56. A gas can be liqueified by the application of pressure alone if its

temperature is – Below its critical point.

57. A real gas will obey the relation PV = RT most closely in the region of –

Low pressure and high temperature.

58. Which fuel has the highest percentage of carbon – Bituminous Coal.

59. Removal of fine solids from the liquids is called – Sedimentation.

60. Detergent solution is dried to powder using - Spray dryer.

61. The ruby rod used in lasers is made of – Silica.

62. In a homogeneous reactor the fuel used is - Uranylsulphate in heavy

water.

63. The type of bonding that exists in solid argon is – Van der Walls.

64. Aqua ammonia is – A solution formed by cold water with ammonia

vapour.

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65. The process of steel making being used in Rourkela steel plant is – L-D

Process.

66. The percentage of sulphur in steel can be reduced by adding – Copper.

67. Activated carbon removes impurities from water through – Absorption.

68. Silica glass is largely used for – High temperature applications.

69. The Graphite rods in the nuclear pile – Convert fast moving electrons into

thermal neutrons.

70. Gases deviate from ideal conditions because of – attraction between

molecules.

71. When liquid air is allowed to evaporate the constituent which evaporates

first is – Oxygen.

72. Odours are generally expressed in terms of – Threshold number.

73. Which of the following is effective shield for neutron rays – Water.

74. Which of the following is the major sources of electrical power in India –

Thermal power plants.

75. The major constituent of natural gas is – Methane.

76. Metal chills are used to – Vary the rate of cooling.

77. Permanent hardness of water can be removed by – Zeolite Process.

78. The crystal structure of brass is – FCC.

79. Which of the following is not a constituent of satellite – Ferrous.

80. Latex – is a milky juice of rubber.

81. Carbon dioxide is a – Inactive gas.

82. Which property of sand is measured by dilatometer – Hot strength.

83. Slip gauges are made of – Alloy steel.

84. Which of the following material gives photoemission – Lithium.

85. Removal of oxygen from water is done using – Absorption.

86. The recrystallisation temperature of steel is – 800 C.

87. Alkaline pyrogallic acid is used in orsat apparatus for the absorption of –

Oxygen.

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Nuclear power Plant

1. Which of the following element is natural radioactive – Radium,

Thorium, Uranium.

2. The function of a reflector in a nuclear power plant is to – Reflect the

escaping neutrons back into the core.

3. The moderator used in fast breeding reactor is – moderator is not used in

this type of reactor.

4. For natural fuel, the natural Uranium is used as fuel and generally heavy

water or graphite is used as moderator.

5. For enriched Uranium, (uranium used contains 5 to 10%) ordinary water

is used as moderator.

6. The water, heavy water, gas (He, Co2), a metal in liquid form (Na) and an

organic liquid is used as coolants.

7. On the basis of Neutron Energy, the reactors are – Fast reactors and

thermal reactors.

8. India has got a large amount of Thorium reserve than Uranium.

9. Moderator: Hydrogen, Deuterium, Helium, Lithium, Beryllium, Boron,

Carbon, Nitrogen, and Oxygen can be used as better moderators. The

Hydrogen is available in ordinary water and heavy water; therefore, it is

suitable only with enriched uranium. Heavy water has low neutron

absorption, therefore, it is ideal moderator but it is very costly (Rs.1400

per Kg).

10. Energy relieved in nuclear power plant by Nuclear Fission.

11. The coal gas is obtained – by passing steam over incandescent coal.

12. Reactor installed at Tarapore – Boiling water reactor.

13. Fuel used in fast breeding reactor is – U 235

14. The unit of Radioactivity is – Curie.

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15. The material used for shielding the core in a nuclear reactor is – Concrete.

16. In sodium graphite reactor the coolant used is – Liquid-Sodium.

17. The gas which is used as a coolant in a nuclear power plant is – Helium.

18. In boiling water reactor, ordinary water is used as – Coolant, Working

fluid, Moderator.

19. Radioactive changes are characterized by – Constant ratio of

disintegration.

20.

Management:

1. At break even point – Total costs are recovered.

2. Third generation computers use – Micro printed circuits.

3. Taylor differential price rate system – does not have guaranteed daily

wages and provides two price rates.

4. Which of the following economic concepts was developed by Karl Marx

– Surplus values.

5. Which one of the following theories of business cycle was accepted by

Karl Marx – The theory based on over-production.

6. In which economy Government interference is very much limited –

Capitalist.

7. Which of the following factor most determines the demand of a

commodity – Price of related commodity, size and shape of commodity,

paying capacity of the consumer.

8. Fixed position layout is also called as – Static product layout.

9. Under Halsey Premium plan a worker who takes the same time as

allowed time receives remuneration – At time rate.

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Machine design:

Strength of Material:

Thermal Engineering:

Production Technology:

Internal combustion Engine:

Theory of Machine:

Quality control:

Plant Layout:

Operation Research:

Work Analysis and Work measurement:

Design, Planning and Control:

Computer Numeric Control:

Finite element Analysis:

Management Information System:

Metal Working:

Metal Cutting and Modern Machining:

Environmental Engineering:

1. Disinfection of drinking water means removal of – Bacteria and is done

by passing Chlorine.

2. The Aeration of water is done for the removal of – odour.

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3. For controlling the growth of algae, the chemical generally used is –

Copper Sulphate.

4. For removal of temporary hardness of water – Alum is added to water.

5. The presence of algae in water indicates that the water is – Acidic.

6. For portable water the permissible pH value is – 7 to 8.5.

7. The desirable temperature of portable water is – 10 C.

8. The hardness limit for portable water range between – 75 to 117 ppm.

9. The maximum permissible turbidity for drinking water – 15 to 25 ppm.

10. In case of public supplies, the maximum permissible nitrite content is –

zero ppm.

11. The chloride content in the water for public supplies should not exceed –

250 mg/litre.

12. The fluoride content in the drinking water should not exceed – 1 mg/litre.

13. The total count of bacteria in portable water should not exceed – 10 per

cc.

14. In one litre sample of drinking water the coliform organism should not

exceed – 10.

15. Turbidity in water is due to – Finally divided particles of clay, silt and

organic matter.

16. The disadvantage of hard water is – increased soap consumption.

17. Plants that grow in absence of sunlight in water, are called – Fungi.

18. The bacteria that can survive without oxygen is called – Facultative

bacteria.

19. The presence of which of the following material in water is not consider

to be dangerous – Calcium.

20. Lead poisoning occurs when the lead content in water is - .3 to .5 ppm.

21. Water with least contamination can be obtained from – Spring along the

hill slope.

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22. Hard water may contain – Calcium carbonate, Magnesium sulphate, and

Magnesium bicarbonate.

23. Per capita consumption of water is usually taken as – 150 to 300 liters.

24. Which of the following industry will usually have the highest

consumption of water for processing – Paper mill.

25. The process of removal of permanent hardness of water is – Zeolite

process.

26. The odour of water is expressed in terms of threshold number, the

maximum threshold number permitted fro public supplies is – 3.

27. For the maximum alkalinity of water, the pH value would be – 14.

28. For the maximum acidity of water, pH value would be - .01.

29. If minimum quantity of potassium permanganate, the pink colour of

water disappears soon, then it shows that – Organic matter is present in

water.

30. The ratio activity of water due to Strontium can be removed by –

Phosphate coagulation.

31. On board ships, the source of drinking water may be – Desalted sea

water.

32. Which organism cause infectious diseases – Viruses, Worms, Protozoa,

Fungi.

33. Mottling of teeth is associated with the presence of – Fluorides in water.

34. The cycle of life death and decay involving organic nitrogenous matter is

called – The Nitrogen cycle.

35. The most frequent method of bacterial reproduction is by – Cell division.

36. Temporary hardness in water is caused by salts like - Carbonates.

37. Zeolite is – Hydrated alumino-silicate.

38. Zeolite process is suitable for – Acidic water.

39. The pH value of sea water is usually – Between 8 and 8.3.

40. The permissible hardness of water for low pressure boiler is – 50 mg/litre.

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41. Alum increases –Acidity of water.

42. The permissible hardness of water for public supplies is – 115 mg/litre.

43. The process of killing at the pathogenic bacteria of water-borne diseases

to make it safe for hospital use, is known as – Sterilization.

44. Bleaching powder is – Hypo-chlorite of lime.

45. The process of removal of dissolved carbon dioxide from the water, is

known as – Aeration.

46. Ultra violet rays are used for the treatment of water known as –

Disinfection.

47. The method used for the removal of fine suspended particle is –

Filteration.

48. Turbidity in water may be removed by – Sedimentation.

49. The maximum concentration of lead in drinking water should not exceed

- .05 mg/litre.

50. Following are the Pesticides – Endrin, Aldrin, Toxaphone, DDT.

51. The maximum permissible level of pesticides in general, in drinking

water is nearly – 1 to 50 ppm.

52. Electrostatic precipitations are largely used in – Thermal power plant.

53. Air pollutants common to urban environments are – Sulphur dioxide,

particulate matter, hydrocarbons.

54. Which of the following space needs maximum number of air changes per

hour – Restaurants.

55. The number of air changes per hour recommended for auditorium is – 3

to 6.

56. The first aid for a victim of electric shock is – Artificial respiration.

57. For the combustion of 1 kg of carbon, the quantity of oxygen required is

– 2.62 kg.

58. The air consumption of a four stroke diesel engine per rated BHP per

hour will be – 5 to 7 kg.

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59. Ash content of Diesel fuel should not exceed - .01%.

60. The average percentage of carbon and hydrogen in petrol may be roughly

given as – 85% C, 15% H2.

61. Paraffin in petrol has the general formula – Cn H 2n+2.

62. The percentage of Krypton in atmospheric air is around – 1ppm.

63. The volume fraction of ozone in atmospheric air is nearly - .02ppm.

64. Which of the following gas has least proportion in atmospheric air –

Helium.

65. The percentage of carbon dioxide in atmospheric air is nearly - .032%.

66. The term BOD is associated with pollution arising out of – Water.

67. If the pH value of water is 7 it means the water is – neutral.

68. Following pollutants affect heart – Calcium, Lead, Carbon monoxide.

69. Small concentrations of fluorides in water – reduce the prevalence of

dental caries.

70. Which of the following can have octane rating of more than 100 –

Benzol.

71. LPG stands for – Liquefied Petroleum Gas.

72. Which of the following fuel has maximum resistance to detonation –

Iso-octane.

73. While comparing tungsten filament lamps with fluorescent tubes, all of

the following are the advantages in favour of tungsten filament lamp

except –Longer Life.

74. Which of the following is a cold cathode lamp – Neon Lamp.

75. Lead is a cumulative poison which ends up in – Bones and tissues.

76. Which of the following pollutant affects lungs – Silica.

77. The speed of sound in air is – 344 meter / sec.

78. The maximum acceptable noise level in offices is – 40 dB.

79. Half life period for carbon 14 is nearly – 5730 years.

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80. Which of the following pollutant results from decaying organic matter –

Ammonia.

81. Which of the following is unlikely to be the pollutant from a sulphuric

acid plants – Hydrogen Sulphide.

82. Carbon monoxide poisoning may cause – Headache, Drowsiness, and

Dizziness.

83. The speed of sound through water – 1500 m/s. In air it is 344 m/sec.

84. Corrosive action of water could be due to its – Alkalinity, hardness,

dissolved oxygen.

85. Electrolysis is the process of removal of – Dissolved solids in water.

86. Chemical used to check the growth of algae in reservoirs is – Bleaching

Powder.

87. Which of the following engines uses two fuels simultaneously – Duel fuel

Engines.

88. A fuel which detonates easily is – n-heptane.

89. Which of the following are the constituent of coal – Hydrogen, Nitrogen,

Inorganic matter.

90. Aeration of water is done for all of the following purposes – removal of

bad tastes, removal of carbon dioxide, increasing the quantity of oxygen

in water.

91. Ionisation chamber can be used for the detection of all of the following

Beta rays, X-ray, Gamma rays.

92. When the trees are planted by road side, the average distance between

two trees should be – 10 to 15 metres.

93. Following are the disease is associated with air pollution – Bronchial

asthma, chronic bronchitis, Emphysema.

94. Swimming pool water requires – De-chlorination.

95. The emission of carbon monoxide in automobile exhaust will be low

when the vehicle is – cruising at high speed.

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96. Normally the colour of exhaust from a diesel engine is – Black.

97. The noise level due to auto horn may be of the order of – 110 dB.

98. Which of the following has the least wave length – Cosmic rays.

99. The wavelength of radiations is given by – v/f.

100. Following are the pollutants are produced as a result of decaying organic

matter – Ammonia, Methane, Hydrogen sulfide.

101. The speed of sound will be maximum through – metals.

102. Which of the following does not use ambient air for propultion – Rocket.

103. A fuel of octane rating 85 matches the antiknock quantities of a mixture

consisting of – 85% octane and 15% heptane.

104. Water gas is a mixture of CO and N2.

105. Producer gas is a mixture of CO and H2.

106. Low grade fuels have – Low calorific value.

107. The desirable temperature inside an air conditioned auditorium is – 20 C.

108. Which of the following area of work needs highest level of illumination –

Clothing factory.

109. The incubation period of Typhoid bacillus causing typhoid fever is – 7

to 21 days.

110. For controlling algae, the chemical used is – Copper sulphate.

111. Electric fuses provide protection against – over loads.

112. Desalination is usually needed for – Sea water.

113. Following are the sound absorptive material – Rugs, Carpets, Heavy

drapes.

114. Following are Pesticides – Aldrin, Endrin, BHC.

115. Q-fever – is an insect born disease.

116. Brakish test of water is due to – Chlorides of Sodium.

117. To keep the water safe against pathogenic bacteria the residual chlorine

should remain between - .05 to .2ppm.

118. Odours are generally expressed in terms of – Threshold number.

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119. Turbidity of water is usually measured in terms of – Silica scale.

120. The colour of water is measured – in terms of platinum cobalt scale.

121. Which of the following is the major source of fly ash emission – Power

plants.

122. Which of the following are the major sources of environmental pollution

in urban areas – Automobiles.

123. The percentage of nitrogen in air by weight is around – 75.5%.

124. Which of the following particles will be smallest in size – Smog.

125. White smoke from a diesel engine can be expected during – Start up or

idling.

126. A blue smoke from a diesel engine indicates presence of – unburnt oil.

127. Dark, black smoke from diesel engines usually results when engine is –

Running at full speed and full load.

128. The emission of oxides of nitrogen in automobile exhaust will be least

when the vehicle is – idling.

129. The emission of carbon monoxide in automobile exhaust will be low

when the vehicle is – Cruising at high speed.

130. The discharge of Hydrocarbons from automobile exhaust is maximum

when the vehicle is – idling.

131. Following are the pollutants result from automobile exhaust – Carbon

monoxide, Nitrous oxide, Hydrocarbons, Sulphur dioxide.

132. DDT is – A chlorinated Hydrocarbon.

Refrigeration and Air Conditioning:

1. A refrigeration system – rejects energy to a lower temperature body.

2. Heat removing capacity of a one ton refrigerator is – 25 Kcal/sec. In SI

units, it is equivalent to 2.5 kW or 210 KJ/min.

3. In a refrigeration system, the moisture is removed by – Driers.

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4. The coefficient of performance of a refrigerator is the ratio of – net

refrigerating effect to ideal refrigeration. It is always more than unity. For

domestic refrigerator it is less as compared to that of an air conditioner.

5. In one ton refrigeration machine, the term ‘one ton’ implies – one ton

refrigerant is used.

6. Capacity of a domestic refrigerator is in the range of -1 to 3 tonnes.

7. If lower temperature is fixed, the coefficient of performance of a

refrigeration machine can be increased by – Operating machine at a lower

speed.

8. In a refrigeration cycle, the moisture is to be removed before it enters the

– cold side of system.

9. During the cooling process, the refrigerant characteristics which change

constantly are – Phase and temperature.

10. Subcooling occurs when the vapour – removes the sensible heat from

refrigerant.

11. Pressure regulator used in evaporator is for – keeping pressure up for

system needs.

12. Sometimes the evaporator is not cooled properly. It is due to – Frozen oil.

13. During sensible cooling process, specific humidity – increases.

14. Dehydration is – Removing water vapour from surroundings, similar to

dehumidification without removal of heat.

15. Dew point temperature lines on the psychrometric chart are – Horizontal.

16. Total heat is the heat needed to –convert water into steam and superheat

it.

17. In air conditioning system, the quantity of free air required per person is –

1.2 m3/min.

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