ENGINEERING MECHANICS MCQ-: 2

 Q.1 The ratio of the limiting friction and the normal reaction is known as ___.

A. Sliding friction 

B. Coefficient of friction 

C. Angle of repose

D. Angle of friction 

Ans-: B

Q.2 The angle of projection should be ______ , for maximum range of a projectile. 

A. 30 °

B. 45 °

C. 0 °

D. 60 °

Ans-: B

Q.3 The frictional force encountered after commencement of motion is called _____.

A. Dynamic friction 

B. Limiting friction 

C. Kinematic friction 

D. None of the above 

Ans-: A

Q.4 Which of the following is not the unit of energy?

A. Kg m

B. Kcal

C. Watt hours

D. Watts

Ans -: D

Q.5 The friction force acting when the body is in motion known as ______ .

A. Limiting friction 

B. Dynamic friction 

C. Kinematic friction 

D. Sliding friction 

Ans-: C

Q.6 The centre of gravity of a plane laminar will not be at its geometrical centre in the case of a _______.

A. Rectangular 

B. Circle 

C. Right angled triangle 

D. Square 

Ans-: C

Q.7 The centre of gravity of a right circular solid Cone height h lies at the following  distance from the base ?

A. h/3

B. h/2

C. h/ 6

D. h/4

Ans-: D

Q.8 The friction force acting when the body is just about to move is known as ___. 

A. Limiting friction 

B. Kinematic friction 

C. Sliding friction 

D. None of the above

Ans-: A

Q.9 Coulomb friction is the friction between the bodies having _____  .

A.  relative motion

B. Two dry surface

C. Angular motion

D. All of the above 

Ans-: A

Q.10 Tangent of angle of friction is equal to

A. Angle of repose

B. Friction force 

C. Coefficient of friction 

D. Kinematic friction 

Ans-: C