ENGINEERING MECHANICS MCQ-: 04

 Q.1 In the simple harmonic motion , acceleration of a particle is proportional to the ______.

A. Velocity 

B. Direction 

C. Acceleration 

D. Displacement 

Ans-: D

Q.2 The value of the coefficient of restitution for  perfectly elastic bodies is _____.

A. 0.5 

B. 2.5

C. 1.0

D. 0

Ans-: C

Q.3 The rate of change of momentum is proportional to the ______.

A. Acceleration 

B. Impressed force 

C. Velocity 

D. All of the above 

Ans-: B

Q.4 The unit of momentum are same as of the ____.

A. Energy 

B. Impulse 

C. Force 

D. Work

Ans-: B

Q.5 If the momentum of a given body is doubled, it's kinetic energy will ______.

A. Increase by 4 times

B. Remain same

C. Reduce to one fourth 

D. Increase by 3 times 

Ans-: A

Q.6 One joule is equal to _____ erg.

A. 10 ^7 

B. 10 ^4

C. 10 ^5

D. 10 ^2

Ans-: A

Q.7 Lighter body will have smaller momen-tum, if a light body and a heavy body have _______ kinetic energy of translation. 

A. More

B. Less

C. Equal 

D. Variable 

Ans-: C

Q.8 Force × time =_____ .

A. Work

B. Power

C. Energy 

D. Impulse 

Ans-: D

Q.9 Mass × velocity = _______.

A. Weight 

B. Load

C. Momentum 

D. Speed

Ans-: C

Q.10 Joule is the unit of _____.

A. Energy 

B. Work

C. Power

D. Frequency 

Ans-: B