Mechanical Engineering MCQs

51. What is the primary function of a torque converter in an automatic transmission?
A. To increase speed
B. To transfer torque
C. To reduce friction
D. To store energy
52. Which of the following is a type of renewable energy?
A. Coal
B. Natural Gas
C. Solar
D. Nuclear
53. What is the primary purpose of a spark plug in an engine?
A. To ignite the fuel-air mixture
B. To regulate fuel flow
C. To cool the engine
D. To reduce emissions
54. Which of the following is a type of machining process?
A. Drilling
B. Welding
C. Casting
D. Forging
55. What is the primary function of a thermostat in a vehicle?
A. To regulate engine temperature
B. To increase power
C. To reduce noise
D. To filter air
56. Which of the following is a type of corrosion?
A. Galvanic corrosion
B. Thermal corrosion
C. Mechanical corrosion
D. Electrical corrosion
57. What is the primary purpose of a carburetor in an engine?
A. To mix air and fuel
B. To ignite the fuel
C. To cool the engine
D. To reduce emissions
58. Which of the following is a type of lubricant?
A. Grease
B. Water
C. Air
D. Sand
59. What is the primary purpose of a shock absorber in a vehicle?
A. To increase speed
B. To absorb vibrations
C. To reduce noise
D. To store energy
60. Which of the following is a type of mechanical coupling?
A. Clutch
B. Brake
C. Gear
D. Pulley
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