A hollow circular shaft of outside diameter 100 mm and an internal diameter of 90 mm is subjected to a torque T = 3π kNm. Polar moment of inertia of circular section is: π × 10-6 m4. Maximum shear stress on the shaft is given by:

A hollow circular shaft of outside diameter 100 mm and an internal dia

1.	A hollow circular shaft of outside diameter 100 mm and an internal diameter of 90 mm is subjected to a torque T = 3π kNm. Polar moment of inertia of circular section is: π × 10-6 m4. Maximum shear stress on the shaft is given by:
A.	100 MPa
B.	125 MPa
C.	150 MPa
D.	175 MPa
Answer» D. 175 MPa

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A hollow circular shaft of outside diameter 100 mm and an internal diameter of 90 mm is subjected to a torque T = 3π kNm. Polar moment of inertia of circular section is: π × 10-6 m4. Maximum shear stress on the shaft is given by:

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