MCQs Of Mechanics for lecturer NTS and PPSC test
1. A ball is dropped on a horizontal surface from a height of 15 m. What will be the rebounding height of the ball after striking the surface? (coefficient of restitution = 0.8)
A. 9.6 m
B. 6.5 m
C. 5.6 m
D. Insufficient data
2. Which of the following is the suitable SI unit of power?
A. Joule
B. Watt
C. Ergs/second
D. Pound
3. The force for which work done is independent of _______ is called a conservative force.
A. Distance
B. Path
C. Time
D. All of the above
4. If the resultant of forces acting on a body is zero, the body
A. Is in equilibrium
B. Is not in equilibrium
C. Is moving with non-uniform velocity
D. None of the above
5. Which of the following is represented by the area under the force-displacement diagram?
A. Impulse
B. Momentum
C. Power
D. Work done
6. When the car moves on road its wheel has
A. Purely rotational motion
B. Purely translational motion
C. Rotational and translational motion
D. None of the above
ans c
7. The normal component of acceleration is zero which motion is include _____.
A. Curvilinear
B. Rotational
C. Rectilinear
D. Translation
8. Dynamic friction is always ____ static friction
A. Less than
B. Greater than
C. Equal to
D. None of the above
9. Every action has an equal and opposite reaction is ____ law of motion.
A. Newton’s first law
B. Newton’s second law
C. Newton’s third law
D. None of the above
10. The maximum displacement of a body from its mean position is
A. Amplitude
B. Mean position
C. Frequency
D. Time period
11. The force applied on a body of mass 250 kg to produce an acceleration of 10 m/s2, is
A. 15 N
B. 150 N
C. 2500 N
D. 3000 N
12. A particle moving with respect to fixed frame of reference is called as __________
A. Absolute motion
B. Relative motion
C. Rectilinear motion
D. None of the above