Practice Work, Power and Energy RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise Physics question set covers important concepts related to work, power, energy, kinetic energy, potential energy, mechanical energy and the conservation of energy.
The Work, Power and Energy RRB PYQ collection is useful for candidates preparing for Railway examinations and revising important Physics concepts through previous year questions. Questions from this topic can include both conceptual and numerical problems, making regular practice important for improving calculation accuracy and understanding the application of Physics formulas.
Whether you are preparing for RRB NTPC Work, Power and Energy PYQ, RRB Group D Work, Power and Energy PYQ, RRB JE Work, Power and Energy PYQ, RRB ALP Work, Power and Energy PYQ, or RRB Technician Work, Power and Energy PYQ, practice these previous year questions regularly as part of your Railway Physics preparation.
Start practicing Work, Power and Energy RRB PYQs with answers and explanations and strengthen your Railway Physics preparation.
71
If an object's displacement is zero, work done by the applied force is:
RRB Group D
16/11/2018 / Shift-I
2018
✓ Answer:DZero
W = Fs cos θ = 0 when s = 0.
72
Efficiency of work is known as:
RRB Group D
16/11/2018 / Shift-II
2018
✓ Answer:AEnergy
The PDF keys energy and explains the ability to do work. Its question uses 'efficiency', which is imprecise; efficiency is normally the ratio of useful output to input.
73
Two conditions must be fulfilled for work to be done. Which is one of them?
RRB Group D
24/10/2018 / Shift-III
2018
✓ Answer:BThe object must be displaced.
Mechanical work requires an applied force and displacement with a component along it.
74
Work done is zero when which quantity is zero?
RRB Group D
11/10/2018 / Shift-I
2018
✓ Answer:BDisplacement
Zero displacement gives zero mechanical work.
75
If work done is zero, what is the angle between a nonzero force and nonzero displacement?
RRB Group D; RRB Group D
08/10/2018 / Shift-II; 17/09/2018 / Shift-II
2018
✓ Answer:B90°
W = Fs cos θ = 0 implies cos θ = 0, so θ = 90°.
76
The product of force and displacement in its direction is called:
RRB Group D
19/09/2018 / Shift-I
2018
✓ Answer:CWork
Work is the scalar product of force and displacement.
77
Which is not a characteristic of work?
RRB Group D
16/11/2018 / Shift-III
2018
✓ Answer:AWork has a direction.
Work is a scalar quantity and has no direction.
78
A force of 20 N moves a body 4 metres in the force direction. Find the work done.
RRB Group D
05/10/2018 / Shift-II
2018
✓ Answer:D80 J
W = Fs = 20 × 4 = 80 J.
79
Work is the product of:
RRB Group D
08/08/2018 / Shift-I
2018
✓ Answer:CForce and displacement in the force direction
W = Fs for displacement along the force.
80
A bus experiences a force of 4000 N and the work done is 2000 J. Find the distance covered.
RRB Group D
06/12/2018 / Shift-III
2018
✓ Answer:D0.5 m
s = W/F = 2000/4000 = 0.5 m.
Showing 71 – 80 of 298 MCQ Questions | Page 8 of 30
![RRB JE Biology [PYQ FREE PDF] Question and Solved Problem with Solution](https://rrbjepyq.in/wp-content/uploads/2026/10/rrb-je-biology-feature-image-300x169.webp)
