Mechanical Engineering MCQs

111. What is the primary purpose of a heat pipe in thermal management?
A. To transfer heat
B. To store heat
C. To generate heat
D. To insulate heat
112. Which of the following is a type of mechanical filter?
A. Air filter
B. Oil filter
C. Fuel filter
D. All of the above
113. What is the primary function of a balance shaft in an engine?
A. To reduce vibrations
B. To increase torque
C. To control speed
D. To regulate fuel flow
114. Which of the following is a type of mechanical sensor?
A. Pressure sensor
B. Temperature sensor
C. Proximity sensor
D. All of the above
115. What is the primary purpose of a harmonic balancer in an engine?
A. To reduce torsional vibrations
B. To increase torque
C. To control speed
D. To reduce friction
116. Which of the following is a type of mechanical spring?
A. Coil spring
B. Leaf spring
C. Torsion spring
D. All of the above
117. What is the primary function of a rocker arm in an engine?
A. To actuate valves
B. To increase torque
C. To reduce friction
D. To control speed
118. Which of the following is a type of mechanical wear?
A. Abrasive wear
B. Adhesive wear
C. Fatigue wear
D. All of the above
119. What is the primary purpose of a hydraulic accumulator?
A. To store energy
B. To reduce pressure
C. To control flow
D. To increase friction
120. Which of the following is a type of mechanical lubrication?
A. Boundary lubrication
B. Hydrodynamic lubrication
C. Elastohydrodynamic lubrication
D. All of the above
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