A hollow shaft of external and internal diameter as 100 mm and 40 mm respectively is transmitting power at 120 rpm. If the shearing stress is not to exceed 50 MPa, the power the shaft can transmit will be

A hollow shaft of external and internal diameter as 100 mm and 40 mm r

1.	A hollow shaft of external and internal diameter as 100 mm and 40 mm respectively is transmitting power at 120 rpm. If the shearing stress is not to exceed 50 MPa, the power the shaft can transmit will be
A.	100 kW
B.	120 kW
C.	140 kW
D.	160 kW
Answer» C. 140 kW

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A hollow shaft of external and internal diameter as 100 mm and 40 mm respectively is transmitting power at 120 rpm. If the shearing stress is not to exceed 50 MPa, the power the shaft can transmit will be

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