Question: Question 1 : A ship s propeller shaft has external and internal diameters of 2 5 0 mm and 1 5 0 mm respectively. What

Question 1: A ships propeller shaft has external and internal diameters of 250mm and 150mm
respectively. What power can be transmitted at 110 rev/min if the maximum shearing stress is to
remain below 75 MPa. At this limit what will be the angle of twist over the 10m length of the shaft.
G =80 GPa.

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