UKPSC Government Polytechnic Workshop Superintendent Examination 2025: Mechanical Engineering (I)
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1. Rate of change of momentum is proportional to which of the following ?
(a) Initial momentum (b) Velocity
(c) Applied force (d) None of the above
2. The moment of inertia of given figure about X-axis is
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π
(a) (D4 – d4) (b) (D4 – d4) (c) (D4 – d4) (d) (D4 – d4)
32 16 128 64
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3. The maximum mechanical advantage of a lifting machine is
(a) m (b) 1/m (c) 1 + m (d) 1 – m
4. If the moment of inertia of a body is large, its resistance to angular acceleration will be
(a) High (b) Low (c) Zero (d) Infinite
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5. In a radial cam mechanism the follower moves
(a) Parallel to the axis of cam shaft (b) At an angle to axis of the shaft
(c) Perpendicular to axis of cam shaft (d) Around the circumference of cam shaft
6. The controlling force in case of Hartnell governor is provided by
(a) Weight of ball only (b) Spring only
(c) Both (a) and (b) (d) None of the above
7. If the force (p) required to apply the brake is greater than zero, then brake is
(a) Self-locking type (b) Self-energising type
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(c) (a) and (b) both (d) Self-acting type
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8. For the given figure, what will be the direction of Coriolis component of acceleration ?
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(a) (b) (c) (d)
9. Maximum range of projectile is given by
(where, u = initial velocity, g = acceleration due to gravity)
(a) u/g (b) u2/g (c) u2/2g (d) u2/4g
Series-A 2 MES
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1. ?
(a) (b) (c) (d)
2. X-
π MES_MechanicalEngg._(P-I)_Set-A
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(a) (D4 – d4) (b) (D4 – d4) (c) (D4 – d4) (d) (D4 – d4)
32 16 128 64
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3.
(a) m (b) 1/m (c) 1 + m (d) 1 – m
4. ,
(a) (b) (c) (d)
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5.
(a) - (b) -
(c) - (d) -
6. :
(a) (b)
(c) (a) (b) (d)
7. (p) ,
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(a) (b)
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(c) (a) (b) (d) :
8. ?
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(a) (b) (c) (d)
9.
(, u = g = )
(a) u/g (b) u2/g (c) u2/2g (d) u2/4g
MES 3 Series-A
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10. The component of the acceleration directed towards the centre of rotation of a rotating body
is known as ___________ component.
(a) Tangential (b) Centripetal (c) Coriolis (d) Central
11. The pressure angle of the cam __________ with increase in the base circle diameter.
(a) Decreases (b) Increases (c) Does not change (d) None of the above
12. The path of contact in involute gear is
(a) Along an involute (b) Along the base
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(c) Along a straight line (d) Along the pitch circle
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13. A differential uses _______ gear train.
(a) Simple (b) Epicyclic (c) Reverted (d) Compound
14. If K is the coefficient of fluctuation of speed and E is the kinetic energy of the flywheel at
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mean speed, the maximum fluctuation of energy of flywheel is equal to
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(a) EK (b) EK/2 (c) 2 EK (d) 2 EK2
15. Which fluid is used in a rope brake dynamometer to cool down the temperature ?
(a) Kerosene (b) Synthetic esters (c) Grease (d) Water
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16. For an overdamped system, the damping factor is
(a) Equal to 1 (b) Less than 1 (c) Greater than 1 (d) Zero
17. The equation of motion of spring-mass damper system is given by
d2 x3dx
2
+ 9x = 10 sin (5t).
dt dt
The damping factor for system is
(a) 0.25 (b) 0.5 (c) 2.0 (d) 3.0
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18. The creep in belt drive is due to the
(a) Material of the pulley
(b) Unequal size of the pulleys
(c) Unequal tension on tight and slack side of belt
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(d) Material of belt
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19. In a damped harmonic oscillator the equation of motion is typically
Md 2 x Cdx Md 2 x
(a) + Kx = 0 (b) + Kx = 0
dt 2 dt dt 2
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Md 2 x
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(c) =0 (d) Kx
dt 2
20. At any instant, if the angular velocity of a link is clockwise then the angular deceleration
will be
(a) Clockwise (b) Counter-clockwise
(c) In any direction (d) None of the above
Series-A 4 MES
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10. ____
(a) - (b) (c) (d)
11. _______
(a) (b) (c) (d)
12.
(a) (b)
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(c) (d)
13. ________
(a) (b) (c) (d)
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K E
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14.
:
(a) EK (b) EK/2 (c) 2 EK (d) 2 EK2
15. () , ?
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(a) (b) (c) (d)
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16.
(a) 1 (b) 1 (c) 1 (d)
17. :
d2 x 3dx
+ 9x = 10 sin (5t)
dt 2 dt
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(a) 0.25 (b) 0.5 (c) 2.0 (d) 3.0
18. ?
(a)
(b)
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(c)
(d)
19.
Md 2 x Md 2 x
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Cdx
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(a) + Kx = 0 (b) + Kx = 0
dt 2 dt dt 2
Md 2 x
(c) =0 (d) Kx
dt 2
20. ,
(a) (b) (c) (d)
MES 5 Series-A
Text of page 6
21. For a single degree of freedom system the equation of motion is 4 x + 9 x + 16x = 0. The
damping ratio of the system is
(a) 9/16 (b) 9/32 (c) 9/26 (d) 9/8
22. The natural frequency of the system shown will be
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s 2s s 3s
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(a) (b) (c) (d)
m m 2m m
23. How many leaf springs are there in Pickering governor ?
(a) Two (b) Three (c) Four (d) Six
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24. The pressure angle of cam depends upon
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(a) Offset between centre lines of cam and follower
(b) Lift of follower
(c) Angle of ascent
(d) All of the above
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25. Which of the following figure graphically represent the maximum shear stress failure theory ?
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(a) (b)
(c) (d)
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26. A bar of different lengths and of different diameters is shown in figure. If bar is subjected to
an axial load ‘P’, then what will be the total change in length of the bar ?
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(a)
P(L1 · L 2 · L3 ) MES_Mechanical Engg._(P-I)_Set-A
L
(b) P 1
L2 L
3
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(A1 · A 2 · A3 ) (E1 · E 2 · E3 ) A1E1 A 2E 2 A3E 3
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L1 · L 2 · L3 A E A 2 E 2 A 3E 3
(c) P (d) P 1 1
A E
1 1 A E
2 2 A E
3 3 L1 · L 2 · L3
27. If a mass spring damper system has a mass of 5 kg, spring constant of 20 N/m & damping
ratio 1.0, what is the critical damping coefficient ?
(a) 25 Ns/m (b) 10 Ns/m (c) 20 Ns/m (d) 100 Ns/m
Series-A 6 MES
Text of page 7
21. 4 x + 9 x + 16x = 0
(a) 9/16 (b) 9/32 (c) 9/26 (d) 9/8
22.
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s 2s s 3s
(a) (b) (c) (d)
m m 2m m
23. ?
(a) (b) (c) (d)
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24.
(a)
(b)
(c)
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(d)
25. ?
(a) (b)
(c) (d)
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26. ‘P’ ,
?
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P(L1 · L 2 · L 3 ) L L2 L
(a) (b) P 1 3
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(A1 · A 2 · A 3 ) (E1 · E 2 · E 3 ) A E
1 1 A E
2 2 A 3E 3
L1 · L 2 · L3 A E A 2 E 2 A 3E 3
(c) P (d) P 1 1
A1E1 A 2 E 2 A 3E 3 L1 · L 2 · L3
27. 5 kg , 20 N/m 1.0
, ?
(a) 25 Ns/m (b) 10 Ns/m (c) 20 Ns/m (d) 100 Ns/m
MES 7 Series-A
Text of page 8
28. A simply supported beam of length ‘l’ is carrying a point load ‘W’ at the centre. Its
deflection at the centre will be :
Wl 3 Wl 3 Wl 3 Wl 3
(a) (b) (c) (d)
3EI 12EI 48EI 192EI
29. The crippling load for a column by Euler’s formula when both ends are hinged is :
(where l = Actual length and EI = flexure rigidity)
π 2 EI π 2 EI 4π 2 EI 2π 2 EI
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(a) (b) (c) (d)
l2 4l 2 l2 l2
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30. The relationship between effective length (L e) and actual length (l) when one end of the
column is fixed and other is free in order to calculate crippling load is :
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l l
(a) Le = l (b) Le = 2l (c) Le = (d) Le =
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2 2
31. The distortion energy density at a point in a stressed body is expressed as
1
(a) U = [(1 – 2)2 + (2 – 3)2 + (3 – 1)2]
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6G
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1
(b) U = [(1 – 2)2 + (2 – 3)2 + (3 – 1)2]
12G
2
(c) U = y
3
1
(d) U = [ – (2 + 3)]
E 1
32. For a material the value of modulus of elasticity and bulk modulus is same, the possible
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Poisson’s ratio is
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(a) 0.11 (b) 0.33 (c) 0.66 (d) 0.13
33. The major and minor principal stress for the given conditions (as shown in figure) will be
equal to
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(a) 100 N/mm2 and 200 N/mm2 (b) 100 N/mm2 and 0
(c) 0 and 200 N/mm2 (d) –100 N/mm2 and 200 N/mm2
Series-A 8 MES
Text of page 9
28. ‘l’ ‘W’ ?
Wl 3 Wl 3 Wl 3 Wl 3
(a) (b) (c) (d)
3EI 12EI 48EI 192EI
29. , :
( l = EI = )
π 2 EI π 2 EI 4π 2 EI 2π 2 EI
(a) (b) (c) (d)
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l2 4l 2 l2 l2
30. , (Le)
(l)
l l
(a) Le = l (b) Le = 2l (c) Le = (d) Le =
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2 2
31. ?
1
(a) U = [(1 – 2)2 + (2 – 3)2 + (3 – 1)2]
6G
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1
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(b) U = [(1 – 2)2 + (2 – 3)2 + (3 – 1)2]
12G
2
(c) U = y
3
1
(d) U = [ – (2 + 3)]
E 1
32. ,
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(a) 0.11 (b) 0.33 (c) 0.66 (d) 0.13
33. :
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(a) 100 N/mm2 200 N/mm2 (b) 100 N/mm2 0
(c) 0 200 N/mm2 (d) –100 N/mm2 200 N/mm2
MES 9 Series-A
Text of page 10
34. Conjugate beam method is a modified form of
(a) Macaulay’s method (b) Doubled integration method
(c) Superposition method (d) Moment area method
35. What is the primary purpose of determining the shear centre in unsymmetrical beams ?
(a) To ensure maximum load bearing capacity
(b) To prevent twisting under loads
(c) To minimize deflection
(d) To increase beam strength
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36. For a two dimensional stress system the coordinates of the centre of Mohr’s circle are
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x – y x y x y x – y
(a) , 0 (b) 0,
(c) , 0 (d) 0,
2 2 2 2
37. The ratio of maximum shear stress to the average shear stress in a circular cross-section
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beam is
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(a) 5/3 (b) 3/2 (c) 7/4 (d) 4/3
38. A rectangular beam of width 6 cm and depth 4 cm is 2 m long and is simply supported at the
ends. It carries a load of 1 kN at mid-span. The maximum bending stress induced in the
beam in MPa is
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(a) 31.25 (b) 41.25 (c) 62.50 (d) 82.50
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39. Young’s modulus is defined up to _________ limit.
(a) Elastic (b) Plastic (c) Proportional (d) Fracture
40. A bar of length 1 m extends by 0.15 mm under a tensile force of 200 N. The strain produced
in the bar is ________.
(a) 0.25 (b) 0.001 (c) 0.0025 (d) 0.00015
41. A bar is subjected to gradually applied tensile load ‘P’. If the length of the bar is doubled
and area is halved, the strain energy will :
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(a) Become eight times (b) Become four times
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(c) Become double (d) Remain the same
42. Shear force in a beam is expressed as
d2y d3y dy d4y
(a) EI 2 (b) EI 3 (c) EI (d) EI
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dx dx dx dx 4
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43. A member ABCD is subjected to a force system as shown. The resistive force in the part BC
is
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(a) 365 N (Compressive) (b) 410 N (Tensile)
(c) 130 N (Tensile) (d) 320 N (Compressive)
44. For a uniaxial load, maximum shear stress occurs at a plane, which make ________ angle
from the loading direction.
(a) 0º (b) 30º (c) 45º (d) 180º
Series-A 10 MES
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34.
(a) (b)
(c) (d)
35. ?
(a) (b)
(c) (d)
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36. -
x – y x y x y x – y
(a) , 0 (b) 0,
(c) , 0 (d) 0,
2 2 2 2
37. -
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(a) 5/3 (b) 3/2 (c) 7/4 (d) 4/3
38. 6 cm 4 cm 2 m ,
1 kN MPa
(a) 31.25 (b) 41.25 (c) 62.50 (d) 82.50
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39. _________
(a) (b) (c) (d)
40. 1 . 200 0.15 . ________
(a) 0.25 (b) 0.001 (c) 0.0025 (d) 0.00015
41. - ‘P’
,
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(a) (b)
(c) (d)
42.
d2y d3y dy d4y
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(a) EI (b) EI (c) EI (d) EI
dx 2 dx 3 dx 4 dx
43. ABCD , BC
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(c) 130 N () (d) 320 N ()
44. ________
(a) 0º (b) 30º (c) 45º (d) 180º
MES 11 Series-A
Text of page 12
45. Which of the following mechanical test provide a relationship between stress amplitude and
No. of cycles ?
(a) Tensile test (b) Creep test
(c) Fracture toughness test (d) Fatigue test
46. In a ductile to brittle transition curve, which point shows maximum brittleness ?
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(a) Point ‘A’ (b) Point ‘C’ (c) Point ‘E’ (d) Point ‘B’
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47. The ductility of a material with work hardening
(a) Increases (b) Decreases
(c) Remains unaffected (d) Cannot predict
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48. The crystal structure of Austenite is
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(a) Body centered cubic (b) Face centered cubic
(c) Hexagonal closed packed (d) Body centered tetragonal
49. The process of reheating the martensite steel to reduce its brittleness without any significant
loss in its hardness is
(a) Normalising (b) Annealing (c) Quenching (d) Tempering
50. As the percentage of carbon increases in steel, its _________ decreases.
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(a) Corrosion resistance (b) Ultimate strength
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(c) Hardness (d) Ductility
51. The permanent deformation of a material that occurs at high temperature under constant
loading over a long period of time is called
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(a) Creep (b) Toughness
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(c) Density (d) Corrosion resistance
52. A piece of semiconductor is connected in series in a circuit. On increasing the temperature,
the current in the circuit will __________.
(a) Decrease (b) Remain unchanged
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(c) Increase (d) None of the above
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53. Which one of the following is correct for Burger’s vector in screw dislocation ?
(a) Perpendicular to the dislocation line (b) Inclined to the dislocation line
(c) Parallel to the dislocation line (d) Opposite to the dislocation line
54. Poisson’s ratio of material is 0.3. The ratio of Young’s modulus to bulk modulus is
(a) 0.8 (b) 1.0 (c) 1.2 (d) 1.4
Series-A 12 MES
Text of page 13
45. ?
(a) (b)
(c) (d)
46. , ?
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(a) ‘A’ (b) ‘C’ (c) ‘E’ (d) ‘B’
47.
(a) (b)
(c) (d)
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48.
(a) : (b)
(c) (d) :
49.
?
(a) (b) (c) () (d)
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50. _______
(a) (b) (c) (d)
51. , ______
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(a) (b) (c) (d)
52. ______
(a) (b) (c) (d)
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53. ?
(a) (b)
(c) (d)
54. 0.3
(a) 0.8 (b) 1.0 (c) 1.2 (d) 1.4
MES 13 Series-A
Text of page 14
55. The magnitude and direction of the lattice distortion associated with a dislocation is
expressed as
(a) Edge vector (b) Screw vector (c) Fixed vector (d) Burger vector
56. Overaging is defined as
(a) Long ageing times (b) Coarsening of precipitate particles
(c) Ageing above room temperature (d) Ultrafine precipitate size
57. In a tensile test, the engineering stress corresponding to the maximum load is known as
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(a) Tensile strength (b) Yield strength
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(c) Fracture strength (d) Upper yield stress
58. Carbon forms _________ when added to iron.
(a) Intermetallic compound (b) Interstitial solid solution
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(c) Substitutional solid solution (d) None of the above
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59. Which one of the following hardness test does not use indentation method ?
(a) Brinell hardness test (b) Rockwell hardness test
(c) Mohs hardness test (d) Vicker’s hardness test
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MES_MechanicalEngg._(P-I)_Set-A
60. Semiconductors have resistivity in the range of
Engg._(P-I)_Set-A
(a) 0 – 103 ohm-meter (b) 10–3 – 0 ohm-meter
(c) 10–3 – 103 ohm-meter (d) 10–6 – 106 ohm-meter
61. If the flux lines of a magnetic field are ejected out of the superconductor. This effect is
known as
(a) Bardeen effect (b) Meissner effect (c) Schreiffer effect (d) Mohr’s effect
62. The magnetic susceptibility () of superconductor is
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(a) –1 (b) 0 (c) 1 (d) 2
Engg._(P-I)_Set-A
63. What is the value of critical magnetic field (H c) as a function of temperature for the
superconducting to normal transition at superconducting transition temperature (T c) ?
(a) –1 (b) 0 (c) 1 (d) 2
MES_Mechanical Engg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
64. If a solid attracts the magnetic lines of force very strongly, it is called as
(a) Diamagnetic (b) Paramagnetic (c) Ferromagnetic (d) Tetramagnetic
65. In a BCC unit cell, the distance between the nearest neighbours is equal to the following
(a) Edge of the cube (b) Half the face diagonal
MES_Mechanical
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(c) Half of the body diagonal (d) Cube diagonal
Engg._(P-I)_Set-A
66. What is the name given to a mixture of nearly 87.5 percent ferrite and 12.5 percent cementite ?
(a) Martensite (b) Austenite (c) Pearlite (d) Sorbite
67. Which one of the following is a condition for orthorhombic crystal system if a, b and c are
the three edge lengths of the unit cell ?
(a) a = b = c (b) a = b c (c) a b c (d) None of the above
Series-A 14 MES
Text of page 15
55.
(a) (b) (c) (d)
56.
(a) (b)
(c) (d)
57. , ?
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a) (b) (c) (d)
58. _______
(a) (b)
(c) (d)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
59. , ?
(a) (b)
(c) (d)
60.
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a) 0 – 103 ohm-meter (b) 10–3 – 0 ohm-meter
(c) 10–3 – 103 ohm-meter (d) 10–6 – 106 ohm-meter
61. ,
(a) (b) (c) (d)
62. ()
(a) –1 (b) 0 (c) 1 (d) 2
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
63. (Tc)
(Hc) ?
(a) –1 (b) 0 (c) 1 (d) 2
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
MES_Mechanical
64.
(a) (b) (c) (d) -
65. BCC :
(a) (b)
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
(c) (d)
MES_Mechanical
66. 87.5 12.5 ?
(a) (b) (c) (d)
67. , a, b c
?
(a) a = b = c (b) a = b c (c) a b c (d)
MES 15 Series-A
Text of page 16
68. Which type of stress results in a change in shape without a change in volume ?
(a) Shear stress (b) Tensile stress
(c) Compressive stress (d) Hydrostatic stress
69. In dielectric materials, what does the term “polarization” refer to
(a) the alignment of dipoles in an electric field
(b) the generation of heat
(c) increase in conductivity
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(d) decrease in resistance
Engg._(P-I)_Set-A
70. In an orthogonal cutting, rake angle of the tool is 25º and the friction angle is 27º. Using
Merchant’s shear angle relationship, the value of shear angle will be :
(a) 40º (b) 44º (c) 54º (d) 50º
71. Generally the frequency of the tool in the case of Ultrasonic Machining (USM) is in the
MES_Mechanical Engg._(P-I)_Set-A
range of
MES_Mechanical Engg._(P-I)_Set-A
(a) 50 – 57 Hz (b) 40 – 47 Hz (c) 18 – 25 Hz (d) 2 – 10 Hz
72. In Electrochemical Machining (ECM), the material removal is due to
(a) Fusion (b) Erosion (c) Corrosion (d) Ion displacement
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
73. For which of the following measurement, feeler gauge is used ?
Engg._(P-I)_Set-A
(a) Radius of a circular plate (b) Surface roughness
(c) Thread (d) Gap between two parts
74. If feed of a tool in a machining process is doubled, roughness of surface will become
(a) two times (b) four times (c) eight times (d) ten times
75. Machinability of a metal depends upon
(a) cutting forces acting on cutting tool.
(b) clearance angle of cutting tool.
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(c) microstructure and physical properties of the metal.
Engg._(P-I)_Set-A
(d) cutting tool life.
76. In a cutting operation, the cutting speed was reduced by 20%. Assuming n = 0.5 and c = 350
in Taylor’s equation, the increase in tool life will be ________.
MES_Mechanical Engg._(P-I)_Set-A
(a) 46% (b) 48% (c) 59% (d) 56%
MES_Mechanical Engg._(P-I)_Set-A
77. Which of the following material cannot be machined by Electrical Discharge Machining
(EDM) ?
(a) Steel (b) Cast iron (c) Titanium (d) Glass
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
78. Merchant’s theory deals with the relationship between
Engg._(P-I)_Set-A
(a) cutting force and chip thickness ratio
(b) cutting temperature and cutting force
(c) cutting force, shear force and friction force
(d) cutting edge angle and rake angle
79. S.I. unit of line energy of dislocation is __________.
(a) J/m2 (b) J/m (c) J/m3 (d) Jm
Series-A 16 MES
Text of page 17
68. , ?
(a) (b) (c) (d)
69. ‘’ ?
(a) (b)
(c) (d)
70. , 25° 27°
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a) 40° (b) 44° (c) 54° (d) 50°
71.
(a) 50 – 57 Hz (b) 40 – 47 Hz (c) 18 – 25 Hz (d) 2 – 10 Hz
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
72. (ECM)
(a) (b) (c) (d)
73. ?
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
(a) (b)
MES_Mechanical
(c) (d) ()
74. ,
(a) (b) (c) (d)
75.
(a)
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
(b)
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(c) -
(d)
76. 20% n = 0.5 c = 350
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
, _______
(a) 46% (b) 48% (c) 59% (d) 56%
77. (EDM) ?
(a) (b) (c) (d)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
78. :
(a) (b)
(c) , (d)
79. S.I. ________
(a) J/m2 (b) J/m (c) J/m3 (d) Jm
MES 17 Series-A
Text of page 18
80. In high velocity forming, which of the following is the primary source of energy used ?
(a) Potential energy (b) Electrical energy
(c) Chemical energy (d) Kinetic energy
81. In Taylor’s equation, the relationship between cutting speed (V) and tool life (T) is
(a) Linear (b) Logarithmic (c) Exponential (d) Polynomic
82. Which one of the following is not the essential characteristics in the design of jigs and
fixtures ?
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(a) Dimensional accuracy (b) Ruggedness
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(c) Adaptability (d) Friction
83. Which one of the following is not a type of locator ?
(a) Edge locator (b) Pin locator (c) Hinged locator (d) V-locator
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84. Which one, among the following is commonly used as an electrode in Electric Discharge
MES_Mechanical Engg._(P-I)_Set-A
Machining (EDM) ?
(a) Copper (b) Aluminum (c) Steel (d) Plastic
85. Which one of the following is used to guide the drill-bit during drilling ?
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(a) V-locator (b) Jack pin (c) Ejector (d) Bush
Engg._(P-I)_Set-A
86. Which one of the following is not a type of mechanical comparator ?
(a) Lever comparator (b) Dial indicator
(c) Plunger comparator (d) Twisted-strip comparator
87. Which one of the following is not a type of comparator ?
(a) Electrical (b) Mechanical (c) Thermal (d) Optical
88. Sensitive bubble tube is a part of ________.
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
One of the following should be used to fill in the blank in the above sentence.
Engg._(P-I)_Set-A
(a) Sine bar (b) Comparator (c) Clinometer (d) Taper plug
89. Precision balls and rollers are used to determine which one of the following ?
(a) Linear dimensions only (b) Angular dimensions only
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(c) Both linear and angular dimensions (d) Neither linear nor angular dimensions
MES_Mechanical Engg._(P-I)_Set-A
90. Revolving cloth is used in which one of the following ?
(a) Buffing (b) Barrel tumbling (c) Honing (d) Lapping
91. In rolling, the pressure is the maximum at the _________.
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
Which of the following should be used to fill up the blank in the above sentence ?
Engg._(P-I)_Set-A
(a) exit (b) entry
(c) both exit and entry (d) point somewhere between entry and exit
92. Bushes are generally provided in a jig to _____________.
Complete the above sentence from one of the following.
(a) locate the job only. (b) guide the tool only.
(c) hold the job only. (d) All of the above options (a), (b) & (c)
Series-A 18 MES
Text of page 19
80. , ?
(a) (b) (c) (d)
81. , (V) (T)
(a) (b) (c) (d)
82. ?
(a) (b) (c) (d)
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
83. - ?
MES_Mechanical
(a) () - (b) -
(c) - (d) V () -
84. (EDM) , ?
(a) (b) (c) (d)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
85. - ?
(a) V - (b) (c) (d)
86. ?
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
(a) (b)
MES_Mechanical
(c) (d) -
87. ?
(a) (b) (c) (d)
88. ________
(a) - (b) (c) (d)
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
?
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89.
(a) (b)
(c) (d)
90. ?
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
(a) (b) - (c) (d) -
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91. ________
?
(a) (b)
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
(c) (d) ,
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92. : _______.
:
(a)
(b)
(c)
(d) (a), (b) (c)
MES 19 Series-A
Text of page 20
93. The ductility of the material _________ with work-hardening.
Which of the following should be used to fill up the blank in the above sentence ?
(a) increases (b) decreases
(c) may increase or decrease (d) remains constant
94. Anisotropy in rolled components is caused by :
(a) grain enlargement (b) grain orientation
(c) elongation (d) alloying
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
95. What does the Operating Characteristic curve (O.C. curve) represent ?
Engg._(P-I)_Set-A
(a) The probability of rejecting a good lot (b) The probability of accepting a good lot
(c) The cost of quality control (d) The required sample size
96. In the context of single sampling plan, the Acceptable Quality Level (AQL) is :
MES_Mechanical Engg._(P-I)_Set-A
(a) the maximum level of defects allowed in a batch.
MES_Mechanical Engg._(P-I)_Set-A
(b) the maximum sample size.
(c) the limit for rejection.
(d) the probability of accepting a defective lot.
97. The Average Sample Number (ASN) is a measure of :
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MES_MechanicalEngg._(P-I)_Set-A
(a) average lot size
Engg._(P-I)_Set-A
(b) the expected value of sample size required to accept a lot.
(c) the maximum sample size.
(d) the average cost of sample.
98. A fixed positon layout is best suited for :
(a) continuous flow production (b) a very big and heavy product
(c) mass production (d) batch production
99. Which of the following is not a type of material handling device ?
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(a) Conveyor (b) Crane (c) Robot (d) Ladder
Engg._(P-I)_Set-A
100. The Economic Order Quantity (EOQ) is a model used to determine which one of the
following ?
(a) The maximum stock level.
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(b) The minimum order quantity.
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(c) The optimal order quantity that minimises the total inventory cost.
(d) The reorder point.
101. In the finite production rate inventory model, what happens if the production rate is higher
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
than the demand rate ?
Engg._(P-I)_Set-A
(a) Inventory will accumulate indefinitely.
(b) Inventory level will remain constant.
(c) Inventory will deplete.
(d) The production process will be stopped cyclically.
102. The tool used in ultrasonic machining is generally made of :
(a) Steel (b) Carbide (c) Brass (d) Aluminium
Series-A 20 MES
Text of page 21
93. - ________
?
(a) (b) (c) (d)
94. ?
(a) - (b) - (c) - (d) -
95. (O.C. ) ?
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
(a) (b)
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(c) - (d)
96. () (AQL) :
(a) ()
(b)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(c)
(d)
97. (ASN)
(a)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(b)
(c)
(d)
98. -
(a) (b)
(c) - (d) ()
99. ?
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a) (b) ( ) (c) (d)
100. (EOQ)
?
(a)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(b)
(c)
(d) :
101. - - , ?
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a)
(b)
(c)
(d)
102. ?
(a) (b) (c) (d)
MES 21 Series-A
Text of page 22
103. The simplex method is used to solve which one of the following ?
(a) Only for non-linear problems.
(b) For linear programming problems with more than two variables.
(c) For integer programming problems with non-linear equations.
(d) All of the above options.
104. What is the objective of transportation model ?
(a) Minimize the total cost of sending goods from sources to destinations.
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(b) Maximise the production rate.
Engg._(P-I)_Set-A
(c) Minimise the inventory level.
(d) Optimise the number of transportation vehicles.
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105. According to queuing theory, what does the utilisation factor represent ?
MES_Mechanical Engg._(P-I)_Set-A
(a) The average waiting time in the system.
(b) The probability that the system is idle.
(c) The fraction of time the service facility is busy.
(d) The average number of customers in the system.
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
106. Which one of the following is a component of quality control ?
(a) Market analysis (b) Inspection and testing
(c) Marketing strategy formation (d) Material handling
107. For what control, R-chart is used ?
(a) Range of variation in a sample (b) Proportion of defectives in a sample
(c) Average defects in a sample (d) Standard deviation of a sample
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
108. For which of the following p-chart is used ?
Engg._(P-I)_Set-A
(a) Monitoring continuous data.
(b) Monitoring proportion of defectives.
(c) Monitoring the average size of a sample.
MES_Mechanical Engg._(P-I)_Set-A
(d) Monitoring the standard deviation of a sample.
MES_Mechanical Engg._(P-I)_Set-A
109. Which one of the following charts is used to track the total number of defects per unit or
sample (of constant size) ?
–
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MES_MechanicalEngg._(P-I)_Set-A
(a) C-chart (b) X-chart (c) R-chart (d) p-chart
Engg._(P-I)_Set-A
110. The graphical method is used for solving which one of the following ?
(a) Linear programming problems with two variables.
(b) Linear programming problems with more than two variables.
(c) Optimisation problems with non-linear equations.
(d) Problems with multiple objective functions.
Series-A 22 MES
Text of page 23
103. ?
(a) -
(b)
(c)
(d)
104. ?
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a)
(b)
(c) -
(d)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
105. , ?
(a) (b)
(c) - (d)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
106. - ?
(a) - (b) (c) - (d)
107. R- () ?
(a) - (b)
(c) (d)
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
108. p- () ?
(a) (b)
(c) (d)
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
109. ( )
MES_Mechanical
?
(a) C- () (b) X - ()
(c) R- () (d) p- ()
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
110. ?
(a)
(b)
(c) -
(d) -
MES 23 Series-A
Text of page 24
111. Work simplification is a technique used for which one of the following ?
(a) Increase the number of tasks
(b) Reduce unnecessary movements and steps
(c) Improve the quality of products
(d) Increase the complexity of operations
112. Which one of the following is an objective of work sampling ?
(a) To improve the quality of materials
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(b) To measure the effectiveness of machinery
Engg._(P-I)_Set-A
(c) To determine the proportion of time spent on various activities
(d) To simplify the work process
113. Value engineering aims at
MES_Mechanical Engg._(P-I)_Set-A
(a) increasing the cost of production.
MES_Mechanical Engg._(P-I)_Set-A
(b) increasing the production time.
(c) improving the value of a product by reducing unnecessary costs.
(d) enhancing product complexity.
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
114. Which one of the following is a benefit of line balancing ?
Engg._(P-I)_Set-A
(a) Balanced load on work stations (b) Improved resources’ utilisation
(c) Reduced material wastage (d) Equal processing time
115. Which one of the following options is most important in work-station design ?
(a) Aesthetics of work-space (b) Ergonomics and comfort
(c) Complexity of equipment (d) Colour of walls
116. In ABC analysis, what does category B items represent ?
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(a) High value, low quantity items (b) Moderate value, moderate quantity items
Engg._(P-I)_Set-A
(c) Low value, high quantity items (d) Critical items only
117. In sequencing, Johnson’s rule is applied to
(a) minimize the number of late jobs.
MES_Mechanical Engg._(P-I)_Set-A
(b) minimize the total elapsed time on two used machines case.
MES_Mechanical Engg._(P-I)_Set-A
(c) maximise the processing time.
(d) balance the workload on all machines.
118. Which one of the following factors does not affect Economic Order Quantity ?
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(a) Demand rate (b) Ordering cost (c) Holding cost (d) Employees’ salary
Engg._(P-I)_Set-A
119. Which layout is most suitable for mass production ?
(a) Process layout (b) Product layout (c) Project layout (d) Cellular layout
120. Which of the following is a characteristic of job-shop production system ?
(a) High volume, low variety (b) Low volume, high variety
(c) Standardised product (d) Continuous production
Series-A 24 MES
Text of page 25
111. - ?
(a)
(b)
(c)
(d)
112. - ?
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a)
(b)
(c)
(d) -
113. -
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a)
(b) -
(c) -
(d) -
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
114. , - ?
(a) - (b)
(c) (d)
115. - ?
(a) - (b) (-)
(c) (d)
116. ABC , B ?
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a) , (b) ,
(c) , (d)
117. ,
(a) ()
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(b)
(c) -
(d)
118. ?
MES_MechanicalEngg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
(a) - (b) (c) (d)
119. - ?
(a) (b) (c) (d)
120. - ?
(a) , (b) ,
(c) (d)
MES 25 Series-A
Text of page 26
121. If a beam is in equilibrium under a uniform load, what can be said about the shear force ?
(a) It is constant throughout the beam. (b) It varies linearly.
(c) It is zero everywhere. (d) It is maximum at the centre.
122. In a system in equilibrium, what can be said about the virtual work done by the external
forces and reactions ?
(a) It is positive. (b) It is negative. (c) It is zero. (d) It is maximum.
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
Engg._(P-I)_Set-A
123. If a system is in equilibrium and the position of the system depends upon many independent
variables, the principle of virtual work states that the partial derivatives of its total potential
energy with respect to each of the independent variable must be :
(a) –1.0 (b) 0 (c) 1.0 (d)
MES_Mechanical Engg._(P-I)_Set-A
MES_Mechanical Engg._(P-I)_Set-A
124. Equivalent Stiffness of two parallel springs of equal stiffness (k 1, 2 = 200 N/m each) in series
with a spring (k3 = 400 N/m) will be _______ N/m.
(where k denotes spring stiffness)
MES_Mechanical
MES_MechanicalEngg._(P-I)_Set-A
(a) 100 (b) 200 (c) 300 (d) 400
Engg._(P-I)_Set-A
125. A rigid body in space has _________ degrees of freedom.
(a) 3 (b) 1 (c) 0 (d) 6
126. Consider the three supports (a) Roller (b) Hinged (c) Fixed. The support(s) that permit(s)
rotation is (are)
(a) (a), (b) and (c) (b) (a) and (c) only
(c) (b) only (d) (a) and (b) only
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127. D’alembert’s principle leads to equation of motion similar to that given by Newton’s
__________ law of motion.
(a) I (b) II (c) III (d) None of the above
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128. A block weighing ‘w’ is resting on a plane inclined at ‘’ to the horizontal. If the coefficient
of friction is , the force ‘p’ required to move the block up the plane is
(a) w cos – w sin (b) w sin – w cos
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(c) w sin + w cos (d) w cos + w sin
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129. What is the principle of moments ?
(a) The sum of clockwise moments equal to sum of counter clockwise moments.
(b) The sum of all forces must be equal to the weight of body.
(c) The sum of displacements is zero.
(d) None of the above
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Text of page 27
121. , ?
(a) () (b)
(c) (d)
122. ,
?
(a) (b) (c) (d)
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123. ,
?
(a) –1.0 (b) 0 (c) 1.0 (d)
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124. ( k1, 2 = 200 N/m) (
k3 = 400 N/m) _______ N/m
( k )
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(a) 100 (b) 200 (c) 300 (d) 400
125. _________
(a) 3 (b) 1 (c) 0 (d) 6
126. (a) (b) (c)
( ) ():
(a) (a), (b) (c) (b) (a) (c)
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(c) (b) (d) (a) (b)
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127. ’ __________
(a) I (b) II (c) III (d)
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128. ‘w’ ‘’ ,
‘p’
(a) w cos – w sin (b) w sin – w cos
(c) w sin + w cos (d) w cos + w sin
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129. ?
(a) ,
(b)
(c)
(d)
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130. In the principle of virtual work, the work done by the self-weight of a body is taken into
consideration when
(a) centre of gravity moves horizontally (b) centre of gravity moves vertically
(c) shear centre moves horizontally (d) shear center moves vertically
131. Screw jack works on the principle of
(a) Horizontal plane (b) Vertical plane
(c) Inclined plane (d) All of the above
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132. Which of the following forces do not cause the rotation ?
(a) Parallel (b) Non-parallel (c) Concurrent (d) Non-concurrent
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133. The angle of repose () holds the following relation with the angle of friction () in the
limiting equilibrium
(a) = (b) = 2 (c) = /2 (d) =
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134. A body is subjected to three forces as shown in figure. Body will be in equilibrium, if ‘x’ is
equal to
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(a) 1.0 m (b) 2.0 m (c) 0.25 m (d) 0.5 m
135. If VA and VB are the velocities at points A and B of link AB, AO and BO are the distances
of the points A and B from the instantaneous centre, then relation between velocities will be
VA BO VA AO
(a) (b)
VB AO VB BO
(c) VA · VB = AO · BO (d) VA · AO = VB · BO
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136. A body is rotating with an angular velocity of 8 rad/s. After 4 seconds the angular velocity
of the body becomes 16 rad/s. What will be the angular acceleration of the body ?
(a) 2 rad/s2 (b) 4 rad/s2 (c) 8 rad/s2 (d) 16 rad/s2
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137. In a reciprocating pump mechanism the velocity of piston depends upon, which of the
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following ?
(a) Radius of crank (b) Length of connecting rod
(c) Angular velocity of crank (d) All of the above
138. A tangential force of 1500 N is acting on a shaft of diameter 10 mm, what will be the work
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done by the force for one revolution of the shaft ?
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(a) 7.5 N·m (b) 15 N·m (c) 150 N·m (d) 300 N·m
139. 1 kg block is resting on a surface with coefficient of friction = 0.1. A force of 0.8 N is
applied to the block as shown. Determine the frictional force
(a) 0.8 N (b) 0.98 N (c) 1.2 N (d) 0
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Text of page 29
130. ,
(a) (b)
(c) (d)
131. ?
(a) (b) (c) (d)
132. ?
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(a) (b) - (c) (d) -
133. () () :
(a) = (b) = 2 (c) = /2 (d) =
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134. , , ‘x’
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(a) 1.0 m (b) 2.0 m (c) 0.25 m (d) 0.5 m
135. VA VB AB A B , AO BO
A B ,
VA BO VA AO
(a) (b)
VB AO VB BO
(c) VA · VB = AO · BO (d) VA · AO = VB · BO
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136. 8 rad/s 4 16 rad/s ,
?
(a) 2 rad/s2 (b) 4 rad/s2 (c) 8 rad/s2 (d) 16 rad/s2
137. ?
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(a) (b)
(c) (d)
138. 1500 N 10 .. ,
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?
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(a) 7.5 N·m (b) 15 N·m (c) 150 N·m (d) 300 N·m
139. 1 kg = 0.1 0.8 N
,
(a) 0.8 N (b) 0.98 N (c) 1.2 N (d) 0
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140. There are two points ‘P’ and ‘Q’ on a planar rigid body. The relative velocity between the
two points
(a) should always be along PQ (b) can be oriented along any direction
(c) should always be perpendicular to PQ (d) None of the above
141. A body of mass 5 kg moving with a velocity 10 m/s collides with another body of mass 20
kg at rest and comes to rest. The velocity of the second body after the collision is
(a) 2.5 m/s (b) 5 m/s (c) 7.5 m/s (d) 0.25 m/s
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142. The force which produces an acceleration of 1 m/s 2 in a mass of 1 kg is called
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(a) one watt (b) one erg (c) one joule (d) one newton
143. 0.0001 kW is equal to ________ J/s.
(a) 0.1 (b) 1 (c) 10 (d) 100
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144. The wheels of a moving vehicle possess
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(a) kinetic energy of rotation only (b) kinetic energy of translational only
(c) potential energy only (d) Both kinetic energy of rotation and translation
145. The power developed by a body acted by a torque T Nm and revolving at ‘n’ rad/s is given
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in watts by
(d) Tn/30
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(a) 2Tn (b) Tn/2 (c) Tn
146. The component of the acceleration parallel to the velocity of the particle at a given instant
is called
(a) Tangential (b) Coriolis (c) Radial (d) Central
147. If the angular velocity of rigid body is halved, its rotational kinetic energy :
(a) Remains the same (b) Doubles
(c) Halves (d) Becomes one fourth
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148. A solid sphere of mass 8 kg rolls without slipping on a flat surface. Calculate its total kinetic
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energy if it has a linear velocity of 2 m/s
(a) 6.4 J (b) 8 J (c) 22.4 J (d) 24 J
149. A car of mass 1000 kg moving at 15 m/s comes to stop in 5 seconds. What is the average
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force exerted on the car ?
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(a) 3000 N (b) 4000 N (c) 5000 N (d) 6000 N
150. A vehicle starts from rest with a linear motion and comes to rest after 20 seconds. The
velocity graph is shown in figure. What will be the total distance travelled by the vehicle ?
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(a) 20 m (b) 100 m (c) 200 m (d) 400 m
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140. ‘P’ ‘Q’
(a) PQ (b)
(c) PQ (d)
141. 10 m/s 5 kg 20 kg
, ?
(a) 2.5 m/s (b) 5 m/s (c) 7.5 m/s (d) 0.25 m/s
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142. 1 .. 1 ./2 _______
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(a) (b) (c) (d)
143. 0.0001 . ________ /.
(a) 0.1 (b) 1 (c) 10 (d) 100
144. _________
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(a) (b)
(c) (d)
145. T Nm ‘n’ /.
(w)
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(a) 2Tn (b) Tn/2 (c) Tn (d) Tn/30
146. _______
(a) (b) (c) (d)
147. ,
(a) (b)
(c) (d)
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148. 8 kg , ,
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2 m/s
(a) 6.4 J (b) 8 J (c) 22.4 J (d) 24 J
149. 1000 kg , 15 m/s , 5
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?
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(a) 3000 N (b) 4000 N (c) 5000 N (d) 6000 N
150. 20
, , ?
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(a) 20 m (b) 100 m (c) 200 m (d) 400 m
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Series-A
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32 MES_Mechanical Engg._(P-I)_Set-A
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Space For Rough Work /
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Source: Uttarakhand Public Service Commission. Question paper published by Uttarakhand Public Service Commission.