Q.

The power transmitted by shaft SI system is given by                      

A. 2πnt/60
B. 3πnt/60
C. 2πnt/45
D. nt/60 w
Answer» A. 2πnt/60
Explanation: in si system, power (p) is measured in watts (w) ; p = 2πnt/60 where t = average torque in n.m
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