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.
191
What is the commercial unit of electrical energy?
RRB Group D
18/09/2018 / Shift-II
2018
✓ Answer:AKilowatt-hour
Electrical consumption is conventionally measured in kWh; one billing unit equals 1 kWh.
192
Which is not an example of potential energy?
RRB ALP & Technician
30/08/2018 / Shift-II
2018
✓ Answer:BFlowing water
Flowing water is identified here by its kinetic energy due to motion.
193
An 8 kg iron ball and a 3 kg aluminium ball are dropped from 20 m. Which quantity is equal for both when they are 10 m above the ground?
RRB Group D
31/10/2018 / Shift-I
2018
✓ Answer:BAcceleration
Neglecting air resistance, both fall with the same gravitational acceleration g regardless of mass.
194
A 2 kg object is thrown upward at 20 m/s. What is its kinetic energy after 2 seconds?
RRB ALP & Technician
09/08/2018 / Shift-II
2018
✓ Answer:B0 J
Using g = 10 m/s², v = u - gt = 20 - 10 × 2 = 0, so K = 0.
195
Which energy is stored in a compressed spring?
RRB Group D
22/09/2018 / Shift-II
2018
✓ Answer:APotential
A compressed spring stores elastic potential energy.
196
Find the kinetic energy of a 22 kg object moving at 5 m/s.
RRB ALP & Technician
09/08/2018 / Shift-II
2018
✓ Answer:A275 J
K = (1/2) × 22 × 5² = 275 J.
197
Mechanical energy equals:
RRB ALP (Stage-II); RRB ALP & Technician
02/05/2025 / Shift-I; 30/08/2018 / Shift-I
2025; 2018
✓ Answer:BKinetic energy + potential energy
Mechanical energy is the sum of kinetic and potential energy.
198
Which increase raises the kinetic energy of a given object?
RRB Group D
13/08/2018 / Shift-I
2018
✓ Answer:DSpeed
For a given mass, K = (1/2)mv² increases with speed. The source keys D.
199
A falling coconut possesses:
RRB Group D
24/09/2018 / Shift-II
2018
✓ Answer:CKinetic energy
Its motion gives it kinetic energy.
200
How does the total energy of a body falling freely toward the earth change?
RRB RPF Constable; RRB Group D
12/03/2025 / Shift-II; 13/12/2018 / Shift-II
2025; 2018
✓ Answer:AIt does not change.
Neglecting air resistance, potential energy becomes kinetic energy while total mechanical energy stays constant.
Showing 191 – 200 of 298 MCQ Questions | Page 20 of 30
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