Mechanical Engineering MCQs

131. What is the primary purpose of a vibration isolator?
A. To reduce vibrations
B. To increase vibrations
C. To store energy
D. To control speed
132. Which of the following is a type of mechanical bearing?
A. Plain bearing
B. Rolling bearing
C. Fluid bearing
D. All of the above
133. What is the primary function of a flywheel in a wind turbine?
A. To store rotational energy
B. To increase torque
C. To reduce friction
D. To control speed
134. Which of the following is a type of mechanical deformation?
A. Elastic deformation
B. Plastic deformation
C. Viscoelastic deformation
D. All of the above
135. What is the primary purpose of a mechanical governor in a diesel engine?
A. To regulate speed
B. To increase power
C. To reduce friction
D. To control temperature
136. Which of the following is a type of mechanical gear?
A. Spur gear
B. Helical gear
C. Bevel gear
D. All of the above
137. What is the primary function of a distributor in an engine?
A. To distribute ignition spark
B. To increase torque
C. To reduce friction
D. To control speed
138. Which of the following is a type of mechanical coupling failure?
A. Misalignment
B. Overload
C. Fatigue
D. All of the above
139. What is the primary purpose of a mechanical seal in a pump?
A. To prevent leakage
B. To increase pressure
C. To reduce friction
D. To control speed
140. Which of the following is a type of mechanical energy storage?
A. Flywheel
B. Spring
C. Compressed air
D. All of the above