electrical engg.dept. semester #2 3320903 …10. draw square in 60mm diameter circle and find its...

ELECTRICAL ENGG.DEPT. SEMESTER #2

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3320903 D C CIRCUIT CH - 1 BASICS OF ELECTRICAL ENGINEERING

1. State the difference between emf & potential difference. 2. Explain the factors affecting resistance, capacitance and inductor. 3. Explain following terms :

(a) Specific resistance (b) Conductance (c) Conductivity (d) Energy (e) Power (f) Ampere (g) Coulomb (h) Watt (i) Resistivity

4. State the effect of temperature on resistance. 5. Explain the resistance temperature co-efficient. 6. Define the relation between resistance temperature co-efficient α2 & α1. prove this equation:

R2=R1(1+α1(t2-t1)) 7. Write the ohm’s law & state its limitations.

CH - 2 ELECTRICAL CIRCUITS 1. Explain following terms :

a. Active element b. Passive element c. Network d. Node e. Branch f. Loop g. Mesh

2. State Kirchhoff’s current and voltage law. 3. Explain the series-parallel connection of resistances.

CH-3 NETWORK THEORMS 1. Explain super position theorm. 2. Delta to star transformation. 3. Explain Thevenin’s theorm. 4. Explain Norton’s theorm.

CH-4 ELECTROSTATICS AND CAPACITORS 3. Derive capacitance of parallel. 4. Derive equation of capacitance for multiple parallel plate capacitors. 5. Find equivalent capacitance when three capacitors are connected in series and parallel. 6. Derive equation of voltage current and charge during charging process of capacitor. 7. Derive equation of voltage current and charge during discharging process of capacitor. 8. State & explain electric field strength or electric field intensity. 9. State & explain electric field and electric lines of force.

CH 5 ELECTROMAGNETIC INDUCTION AND INDUCTOR 1. State & explain faraday’s laws of electromagnetic induction with Lenz’s law. 2. State & explain different types of induced emf. (dynamically & statically induced emf) 3. What is self induction? Derive the equation for co-efficient of self induction. 4. What is mutually induced emf? Derive the equation for co-efficient of mutual induction. 5. Derive equation for co-efficient of coupling. 6. Explain dynamically induced emf with derivation. 7. Compare statically & dynamically induced emf. 8. Short note on hysteresis loop.


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9. Derive equation of energy stored in magnetic field.

Subject:-3300007(Engineering Drawing)

UNIT NO. 1,2,3 & 4 - DRAWING FUNDAMENTALS

1. Draw lines at different angles (0◦, 30◦, 45◦, 60◦, 75◦, 90◦) using Set Square only in the

dimensions 150 x 100 mm space.

2. Show two different methods of dimensioning on the given object.

3. Draw twelve equal parts of circle.

4. Using two different methods draw the inscribe pentagon in the circle of 50mm diameter.

5. Draw circumscribed hexagon in the circle of 50mm diameter.

6. Draw various polygons using universal circle method for the side of 40mm.

7. Show the different types of line in tabular form with their applications.

8. Write alphabets in the dimensions given below:

CAPITAL LETTERS:

Height 12mm, width 8mm, gap between two characters 2mm, angle 75◦

small letters:


Digits (0 to 9):


9. Draw the title block with suitable notations & dimensions.

10. Draw a straight line 80 mm long and divide it into 9 equal divisions.


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IMPORTANT QUESTIONS

1. Prepare a table showing drawing equipments, instruments, and materials in one column and

its uses in other column.

2. List the modern method of storing and reproduction of drawing. Describe any one.

3. List the equipments, instruments, and materials used for tracing.

4. Draw straight line 69mm long and divide it into 7 equal divisions.

5. Construct a regular pentagon of 35mm side by special method.

6. With the help of 30 -60 set square and a foot rule, construct a regular hexagon of sides

30mm long.

7. Construct a regular pentagon with the distance from its centre to one of it’s corner is 45mm.

8. Inscribe a circle in an equilateral triangle having sides 50mm.

9. Circumscribe a triangle in a circle having diameter 30mm.

10. Draw square in 60mm diameter circle and find its side length.

11. Construct a regular hexagon having distances across flats 80 mm using T-square and Set

Square only.

12. Show how A2 size of paper is folded.

13. Explain following method of dimensioning shortly with illustration:

A. Chain dimensioning

B. Parallel dimensioning

C. Combined dimensioning

14. Draw isometric scale for 60mm length.

15. Draw a regular hexagon of 60mm side and inscribe six circles in it so that each circle touches

another two circles and one side of the hexagon.


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UNIT NO. 5 - ENGINEERING CURVES

1. The major axis and minor axis of an ellipse measure 120mm and 80mm respectively. Draw the ellipse using oblong method.

2. The distance between directrix and focus of a curve is 63mm and eccentricity is given as ¾. Draw the curve and name the curve.

3. A ball is thrown in the sky achieves maximum height of 5m and reaches the ground back at a distance of 11meters from the place it was thrown. Draw the locus of the ball and name the curve.

4. A thread is unbound from the drum having 40mm diameter. Draw the locus of the free end of the thread for unwinding through an angle of 360◦ i.e. one revolution. Name the curve.

5. Draw an Archimedean spiral for one complete convolution, taking smallest and greatest radii being 12mm 84mm respectively.

6. Draw an ellipse having major and minor axes 100mm and 60mm respectively. Use arc of circle method.

7. Two asymptots ‘OX’ and ‘OY’ are at 80˚ angle. Point ‘P’ is 40mm from ‘OX’ and 50 mm from ‘OY’. Draw hyperbola passing through point ‘P’. Take at least 10 points trace the curve.

8. Draw an involute of a circle having diameter 60mm for a string length 150mm.

9. Draw a conic curve when the distance of the focus from the vertex is 45mm and the eccentricity e=3/2. Name the curve.

10. Draw Archimedean spiral for 420˚. The smallest and greatest radiuses are 10 mm and 80mm respectively.

11. A circle of 40mm diameter rolls along a straight path, without slipping. Draw the curve traced by point ’P’ on the circumference for one revolution of the circle. Name the curve.

12. Distance between directrix and focus is 100mm. draw the curve having e=1, passing through the vertex and name it.

13. Major axis of an ellipse measures 100mm & distance between foci is 80mm. Draw half the ellipse by oblong method& remaining half by concentric circle method.

14. Draw a parallelogram parabola with base(ab)120mm &height(ad) 80mm at an angle of 750 with horizontal axis.(angle dab=750).


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15. Draw a hypocycloid for directing circle with 75mm radius and generating circle with 50mm diameter.

16. Draw an involute for regular pentagonal disk having 20mm side.

17. Draw an Archimedean spiral for 450. Small radius & large radius being 10mm and 80mm respectively.

18. Draw a 600 oblique hyperbola passing through the point P (30, 40).


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UNIT NO.6 - PROJECTIONS OF POINTS AND LINES

1. Draw the projection of following points by keeping 20 mm distance between projectors.

(a) A point P is 10 mm above HP and 20 mm behind VP.

(b) A point Q is 25 mm below HP and 10 mm behind VP.

(c) A point R is 15 mm above HP and 20 mm in front of the VP.

(d) A Point S is 20 mm below HP and 15 mm in front of the VP.

(e) A point T is 12 mm above HP and in the VP.

(f) A point U is in the HP and 25 mm behind VP.

(g) A point V is in the HP and VP.

2. A line MN 90mm long is inclined at 30º to the H.P. The plan of line MN makes angles of 45º with XY line. Draw the projections of the line and find out its inclination with V.P. The end M of the line is 15mm above H.P. and 10 mm in front of V.P.

3. The plan and elevation of a line PQ 100 mm long, measures 80mm and 70mm respectively. The end P is 10mm above H.P. and 15mm in front of V.P. Draw the projections of a line PQ and determine its inclinations with H.P. and V.P.

4. A line AB 100mm long has its end A in the HP and 10 mm in front of VP. The end B is 50mm above HP and 40mm in front of VP. Draw the projections and measure true and apparent inclinations.

5. A line MN is 100mm long and making an angle 40º with HP has its end “M” in the HP and 12mm in front of VP. The distance between end projectors is 36mm. Draw the projection of line MN and determine its inclinations with HP and VP. Assume end point “N” in the first quadrant.

6. A line MN 100mm long has its front view inclined at 45◦ to xy, and measures 60 mm. The end M is in the VP and 25mm above HP. Draw the projections of the line.

7. A line AB 80mm long is inclined at 30◦ to HP and 45◦ to VP. Its end ‘A’ is 20mm above HP and 20mm in front of VP. Draw its projections.

8. A line PQ is 100mm long and making an angle 40◦ with HP has its end P in the HP and 12mm in front of VP. The distance between end projectors is 36mm. Draw the projections of line PQ and determine its inclinations with HP and VP. Assume end point Q the first quadrant.


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9. A line CD 75 mm long has its end A 10mm above HP and 15mm in front of VP. Its top view and front view measures 60mm and 40mm respectively. Draw the projections of the line and determine its inclinations with the HP and VP.

10. A line PQ is 80 mm long, having its end P 22 mm above H.P. and 33 mm in front of V.P. The end Q is 42 mm above H.P. and 70 mm in front of V.P.. Draw all the projections and mention the missing data.

11. The distance between end projectors of line CD is 60 mm. The end C is in the H.P. and 50 mm in front of V.P. The end D is in the V.P. and 70 mm above H.P. Draw all the projections.

12. Line AB is 100 mm long and inclined at 30o to the H.P. and 45 o to V.P. End A is 15 mm above H.P. and 20 mm in front of V.P. Draw all the Projections.

13. The plan length of line AB measures 80 mm. The end A is 15 mm above H.P. and 20 mm in front of V.P. The end B is 40 mm above H.P. and 60 mm in front of V.P. Draw all projections. Find true length.

14. A line MN, 80 mm long is inclined at 30 o to H.P. End M is in the V.P. and 20 mm above H.P. Its elevation measures 60 mm. Draw all the projections.

15. A line PQ is 90 mm long, has its end P 10 mm above H.P. and 15 mm in front of V.P. and other end Q is 60 mm H.P. and 55 mm in front of V.P. Find the inclination of line with respective planes and also draw its projections.

16. The projections of the ends of the line AB are 40 mm a part. Front view and the top view of the line are 56 mm and 70 mm respectively. End A is 25 mm above H.P. and 15 mm in front of V.P. Draw the projection of the line and determine the true length.

17. The top view of a line PQ is 75 mm and its front view is 70 mm. The point P is in the H.P. and

V.P. Find the true length of a line when top view makes an angle of 30° with the V.P.

18. The distance between the end projections of line AB is 65 mm. The line measures 85 mm. The end A is 20 mm above H.P. and 15 mm in front of V.P. Draw its projections when it is parallel to V.P. determine its inclination with H.P.

19. A line AB 100 mm long is inclined at 30° to V.P. The end A is in the H.P. and 20 mm in front of V.P. Its elevation makes an angle 45° with XY. Draw the projections of a line and measure the inclination of the line with H.P.

20. A line AB 100 mm long. has its end A in the horizontal plane and 10 mm in front of V.P. The end B is 50 mm above H.P. and 40 mm in front of V.P. Draw the projections and measure true end apparent inclination. (O,,,)


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UNIT NO. 6 - PROJECTIONS OF PLANES

1. The three sides of a triangular plane measures 60, 40,60mm. The short side of the triangle plane is in the HP and makes an angle 60◦ with the VP. Draw the projections if the plane is inclined at 45◦ to the HP.

2. A square plane of side 50mm is resting on one of its corner in the HP in such a way that the plane makes an angle of 45◦ with the HP and top view of the diagonal connecting the corner on which it rest, makes an angle of 30◦ with the VP.

3. Draw the projections of circular plane having diameter 60 mm with one of the diameters ‘AB’ makes an angle of 30◦ with the HP and 60◦ with the VP.

4. A hexagonal plane side 25mm is resting on one of its sides in the HP in such a way that the side on which it rests makes an angle of 30◦ with the VP. The plane makes an angle of 45◦ with the HP. Draw the projections.

5. A square PQRS of 40mm side has its corner ‘P’ in the HP. Its diagonal PR inclined at 30˚ to the HP and diagonal QS inclined at 45˚ to the VP and parallel to HP. Draw its projections.

6. Draw the projections of regular hexagon of 30mm side having one of its side in the HP and inclined at 45˚ to the VP and its surface makes an angle of 30˚ with the HP.

7. Draw a projection of regular pentagonal plate of 20mm sides has one of its corners in the HP and the side opposite to that corner is inclined at 30˚ to the VP. The plate is inclined at 45˚ to the HP.

8. A circle of 50mm diameter has its one diameter AB inclined at 60˚ to the HP and other diameter CD which is perpendicular to AB, is at an angle 45˚ to VP. Draw its projection.

9. A rectangular plate of 40 * 60 mm side on the H.P. and 10 inclined at 600 of the V.P. Draw the projection of the plate if it is inclined at 450 to the H.P.

10. A cone diameter of base 50 mm & axis 70 mm long has One of its generator in the H.P. & making an angle of 600 V.P.. Draw its projection.

11. A cone base 50 mm diameter & axis 70 mm long in resting on its base on the H.P. A cutting plate parsing through its apex & cutting the base of the cone at 10 mm distance from its axis, cuts the cone Draw its F.V, Sectional top view & true shape of the section.

12. A rectangular plate of 40:60 mm sides has shorter sides on the H.P. & inclined at 600 to the V.P. Draw the projection of the plate if it is inclined at 45 to H.P.

13. A Square prism side of base 30 mm & axis 50 mm long is resting on H.P. write axis inclined at k300 to H.P. and a side of the base on which it is resting is inclined at 450 to V.P. Draw its projection.


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14. A cone base diameter 50 mm & axis 70 mm is resting vertically on H.P. It is cut by a section plane inclined at 450 to H.P. & perpendicular to V.P. parsing through the midpoint of the axis. Draw Elevation, Sectional Plan & True shape of the section.

15. Draw the projections of a cone base dia.60 mm & axis 80 mm When it is resting on H.P. on a point on its base write in such a way that one of its generator is perpendicular to the H.P. & the plan of its axis makes an angle of 450 with V.P..

16. A Square plate ABCD of 50 mm side has its corner ‘A’ on the H.P. & diagonal AC’ inclined at 450 to V.O & parallel to H.P. Draw its projections.

17. The hexagonal plane of 25 mm side is resting on H.P. on One of its side which is inclined at 300 to V.P. & the plane is inclined at 450 to H.P. Draw the projections of the plane.

18. A Square of 50 mm side is resting on H.P. on one of its Corner. The plane is inclined at 450 to H.P. & plan of the diagram passing to the corner on which it is resting inclined at 300 to V.P. Draw the projections of the plane.

19. A pentagonal prism is resting on H.P. on one of its rectangular face with its axis inclined at 300 to V.P. The side of the base of prism is 25 mm & length of axis 60 mm.

20. A Square pyramid of 40 sides of the base & 60 mm height is resting on H.P. on its base with all sides of base equally inclined with V.P. A Cutting plane inclined at 450 to H.P. perpendicular to V.P. bisects the axis of the pyramid. Draw elevation sectional plan & true shape of the section.


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UNIT NO. 7 - ORTHOGRAPHIC PROJECTIONS

PROBLEM-X: A pictorial view of an object is given. Draw following view according to FIRST angle projection

method. Take appropriate scale. Give necessary dimensions using aligned system. Show the

symbol of projection.

a) Front view looking from direction “X”

b) Top view

c) L.H.S.V. or R.H.S.V.

PROBLEM-Y: A pictorial view of an object is given. Draw following view according to THIRD angle projection

method. Take appropriate scale. Give necessary dimensions using unidirectional system.

Show the symbol of projection.

a) Front view looking from direction “X”

b) Top view

c) L.H.S.V. or R.H.S.V.

SR.

NO.

PROBLEM-X

PROBLEM-Y


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A 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29 2,4,6,8,10,12,14,16,18,20,22,24,26,28,30


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UNIT NO. 8 - ISOMETRIC DRAWING AND PROJECTIONS


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PROBLEM-X: Figure shows two views of an object. Draw an isometric drawing.

PROBLEM-Y: Figure shows two views of an object. Draw an isometric projection.

SR.

NO.

PROBLEM-X

PROBLEM-Y

A 1,3,5,7,9,11,13 2,4,6,8,10,12


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SUBJECT CODE :- 3300005 SUBJECT NAME :- Basic Physics(Group II)

Unit – 1

1) Define accuracy and precision. 2) Give significant digits in the following. (1) 0.07900 (2) 123000 (3) 1234 (4) 1020506 (5)

1.300 3) Explain how you will measure the outer diameter of cylinder using vernier caliper &

Micrometer screw gauge. 4) 10 dyne = _______ N and 1A0 = ________ cm. 5) Define Ampere, meter, kilogram, second, candela, Kelvin and Mole. 6) Give unit of physical quantities (1) Pressure (2) Energy (3) Force (4) Energy 7) Explain construction and working of Vernier caliper and define L.C.M. for it. 8) Explain construction and working of Micrometer Screw Gauge and define L.C.M. for it. 9) For SI unit system list the physical quantities with their units and symbols in tabulated

form. Explain how SI unit system is different from other unit systems. 10) Draw neat and clean labeled diagram of Vernier Caliper & Micrometer Screw. 11) Define; Accuracy and precision. Explain different types of errors with example. 12) Explain positive error and negative error of Vernier calipers & Micrometer screw with

figures. 13) What is meant by supplementary units? Give their names. 14) Explain rules to write the units. 15) Explain rules to determine significant digits and number.

Unit – 2

1) Define the properties of electric charge. 2) Explain coulomb’s law. 3) What is electric field? Define electric field lines and their properties. 4) What is electric flux? 5) Define electric potential & write its unit. 6) Define ohm’s law and its limitation. 7) Distinguish between resistivity & conductivity. Write it formula & unit. 8) Explain Kirchhoff’s first/current and second/voltage law. 9) Explain series and parallel connection of resistances and derive its equivalent

resistance equation. 10) What is power? Explain joule effect. 11) Define chemical effect of current.

Unit – 3

1) Define magnetic field & explain the properties of magnetic field lines. 2) What is magnetic flux? Write its unit. 3) Explain Biot-Savart’s law for electromagnetic field. Define right hand thumb rule.


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4) Define Lorentz force. Explain force on a current carrying conductor in magnetic field. 5) Explain magnetic materials. Distinguish between Diamagnetic, Paramagnetic &

ferromagnetic material. 6) Define hysteresis curve for magnetic material. 7) What is electromotive force? Write farad’s first and second law for electromagnetic

induction. 8) Define Lenz’s law. 9) Define AC generator. Explain alternating current and voltage. 10) What do you mean by RMS. Define Vrms and Irms.

Unit – 4

1) Explain classification of solid substances with reference to band theory of solids. 2) What is a semiconductor? Define types of semiconductors. 3) Define extrinsic semiconductors. 4) What is P-N junction diode? State the characteristic of P-N junction diode. 5) What is rectifier? State the types of rectifier and explain it. 6) What is transistor? State the types of it with diagram. 7) Explain CE mode of transistor. 8) Draw I/P and O/P characteristics of NPN transistor. From that define the parameters :

(a) input resistance (b)output resistance (c) Current gain 9) Explain advantages of semiconductor diode over vacuumed diodes. 10) Write the uses of nanotechnology in various fields. 11) Write short note on nano material & explain its properties. 12) Define different method to produce nano material in brief.

Unit – 5

1) Define: Periodic time, frequency, wavelength, amplitude & phase. 2) Explain sound waves as longitudinal waves. 3) Distinguish between transverse waves & longitudinal waves. 4) What is node, antinodes & resonance? 5) Define the relation between velocity, wavelength & frequency. 6) Define Newton’s formula for velocity of sound in air and explain the Laplace’s

correction in it. 7) Define the properties of electromagnetic waves. 8) Define: Polarization, dispersion, diffraction. 9) What is interference? Explain its types. 10) Define reflection & refraction and state its law. 11) Give Snell’s law and define absolute refractive index. 12) Write the properties of light. 13) Explain total internal reflection. 14) Write the full form of LASER and explain its properties. 15) Write short note on spontaneous emission, stimulated emission and population

inversion of electrons.


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16) Explain types of laser. 17) Draw the figure of He – Ne laser and explain the method for the production of laser

beam. 18) Write the application of laser. 19) Explain the working principle of fiber optics & define their types. 20) Explain acceptance angle & Numerical aperture of fiber optics. 21) Explain advantages of fiber optics & its application in different fields. 22) Explain optical fiber communication system.

electrical engg.dept. semester #2 3320903 …10. draw square in 60mm diameter circle and find its...

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