Mech Expert

81. What is the primary function of a governor in a steam engine?

A. To regulate speed

B. To increase power

C. To reduce friction

D. To control temperature

82. Which of the following is a type of material failure?

A. Brittle fracture

B. Ductile fracture

C. Fatigue failure

D. All of the above

83. What is the primary purpose of a control valve?

A. To regulate flow

B. To increase pressure

C. To reduce temperature

D. To store fluid

84. Which of the following is a type of renewable energy source?

A. Biomass

B. Coal

C. Natural Gas

D. Nuclear

85. What is the primary function of a radiator fan in a vehicle?

A. To cool the radiator

B. To heat the cabin

C. To increase power

D. To reduce noise

86. Which of the following is a type of mechanical linkage?

A. Slider-crank

B. Four-bar

C. Cam-follower

D. All of the above

87. What is the primary purpose of a belt drive?

A. To transmit power

B. To store energy

C. To reduce friction

D. To control speed

88. Which of the following is a type of mechanical fastener?

A. Bolt

B. Screw

C. Nut

D. All of the above

89. What is the primary function of a throttle valve in an engine?

A. To control air intake

B. To ignite the fuel

C. To cool the engine

D. To reduce emissions

90. Which of the following is a type of mechanical efficiency?

A. Thermal efficiency

B. Volumetric efficiency

C. Mechanical efficiency

D. All of the above

Mechanical Engineering MCQs