Mechanics RRB PYQ – Physics Previous Year Questions
Practice Mechanics 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, mass, force, Newton’s laws of motion, momentum, distance, displacement, speed, velocity, acceleration, equations of motion, friction and motion, helping you revise essential Physics concepts for RRB examinations.
Each question includes the correct answer and an explanation to help you understand the concept, strengthen your Physics fundamentals, and revise important Mechanics topics for RRB Railway examinations.
Start practicing Mechanics RRB PYQs and strengthen your Physics preparation.
391
Which physical quantity equals the product of force and velocity in the force direction?
RRB Group D
10/12/2018 / Shift-I
2018
✓ Answer:CPower
P = W/t = Fs/t = Fv.
392
A force of 125 N moves an object 5 m in its direction. Find the work done.
RRB Group D
09/10/2018 / Shift-I
2018
✓ Answer:D625 J
W = Fs = 125 × 5 = 625 J.
393
Which expression correctly relates power P, force F, time t, and distance d?
P = W/t = 3000/15 = 200 W. Repeated 5 W options are retained from the PDF.
397
A 50 kg boy climbs 45 stairs in 10 seconds. Each stair is 16 cm high. Find his power.
RRB Group D
23/10/2018 / Shift-II
2018
✓ Answer:C360 W
h = 45 × 0.16 = 7.2 m. Using g = 10 m/s², P = 50 × 10 × 7.2/10 = 360 W.
398
If an object moves in a circular path, what is the work done on it in one rotation?
RRB ALP & Technician
17/08/2018 / Shift-III
2018
✓ Answer:AZero
The PDF keys zero, consistent with uniform circular motion under a radial force. A closed path alone does not guarantee zero work by an arbitrary force.
399
A machine does work W in time t with power p. If its power is doubled, how long will the same work take?
RRB Technician Grade-I
20/12/2024 / Shift-I
2024
✓ Answer:Ct/2
For fixed work, t = W/P. Doubling power halves the required time.
400
Average power is equal to:
RRB Group D
25/10/2018 / Shift-II
2018
✓ Answer:DTotal energy used / total time
Average power equals total energy transferred divided by total elapsed time.
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