Civil Engineering MCQAE Level Civil Engineering
Power transmitted by a shaft rotating at N rpm with torque T (N·m):
Strength of MaterialsTorsionEASY
Choose the correct answer
A
P = 2πNT/60
B
P = NT/60
C
P = πNT/30
D
P = 2NT/60
Correct Answer
A. P = 2πNT/60
Why is this the answer?
P = T×ω = T×(2πN/60) = 2πNT/60 watts. Or P = 2πNT/60000 kW.
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This MCQ belongs to Magic Mock Test Series — WBPSC AE Civil (Preliminary). Full tests include timed attempts, rank comparison and subject-wise analysis.