Mechanical Engineering MCQs

101. What is the primary function of a counterweight in a crankshaft?
A. To balance rotational forces
B. To increase torque
C. To reduce friction
D. To control speed
102. Which of the following is a type of renewable energy conversion?
A. Solar to electrical
B. Wind to mechanical
C. Hydro to electrical
D. All of the above
103. What is the primary purpose of a flywheel in a press machine?
A. To store energy
B. To reduce speed
C. To increase torque
D. To control pressure
104. Which of the following is a type of mechanical actuator?
A. Hydraulic cylinder
B. Pneumatic cylinder
C. Electric motor
D. All of the above
105. What is the primary function of a turbocharger in an engine?
A. To increase air intake
B. To reduce emissions
C. To cool the engine
D. To regulate fuel flow
106. Which of the following is a type of mechanical joint?
A. Welded joint
B. Riveted joint
C. Bolted joint
D. All of the above
107. What is the primary purpose of a governor in a turbine?
A. To regulate speed
B. To increase power
C. To reduce friction
D. To control temperature
108. Which of the following is a type of mechanical clutch?
A. Friction clutch
B. Fluid clutch
C. Centrifugal clutch
D. All of the above
109. What is the primary function of a chain drive in machinery?
A. To transmit power
B. To store energy
C. To reduce friction
D. To control speed
110. Which of the following is a type of mechanical brake?
A. Disc brake
B. Drum brake
C. Band brake
D. All of the above
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