A shaft can safely transmit 90 kW while rotating at a given speed. If the diameter of the shaft is doubled and speed is halved the previous shaft, the power that can be transmitted by new shaft is

A shaft can safely transmit 90 kW while rotating at a given speed. If

1.	A shaft can safely transmit 90 kW while rotating at a given speed. If the diameter of the shaft is doubled and speed is halved the previous shaft, the power that can be transmitted by new shaft is
A.	360 kW
B.	90 kW
C.	720 kW
D.	180 kW
Answer» B. 90 kW

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A shaft can safely transmit 90 kW while rotating at a given speed. If the diameter of the shaft is doubled and speed is halved the previous shaft, the power that can be transmitted by new shaft is

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