Mechanical Aptitude MCQ Questions and Answers 2

Question 1

A cam mechanism converts which type of motion?

Accepted Answer

Rotary to reciprocating or oscillating

Answer

Linear to linear

Answer

Reciprocating to rotary

Answer

None — it stores energy

Question 2

What is the SI unit of torque?

Accepted Answer

Newton-meter

Answer

Joule

Answer

Newton

Answer

Watt

Question 3

Which of these is NOT one of the six classical simple machines?

Accepted Answer

Spring

Answer

Lever

Answer

Wheel and axle

Answer

Inclined plane

Question 4

What does the coefficient of friction depend on?

Accepted Answer

The materials and condition of the two surfaces in contact

Answer

The weight of the object only

Answer

The surface area of contact

Answer

The speed of the object only

Question 5

Heat always flows naturally from:

Accepted Answer

Hot objects to cold objects

Answer

Cold objects to hot objects

Answer

Objects of equal temperature

Answer

Dense objects to less dense objects

Question 6

What is the function of a clutch in a mechanical system?

Accepted Answer

To connect and disconnect the engine from the transmission

Answer

To increase engine speed

Answer

To reduce vibrations

Answer

To measure torque output