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UPSC Civil Service Exam Questions - Engineering

Q1:

A shaft turns at 150 rpm under a torque of 1500 Nm. Power transmitted is

A 15 π kW

B l0 π kW

C 7.5 π kW

D 5 π kW

ANS:C - 7.5 π kW

Power=2πNT/60000 in K.
=2π * 150*1500/60000.
=7.5KW.