The maximum permissible twisting moment in a circular shaft, according to the maximum shear stress theory of failure, is 'T'. According to the maximum principal stress theory of failure, the permissible twisting moment for the same shaft is:

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The maximum permissible twisting moment in a circular shaft, according to the maximum shear stress theory of failure, is 'T'. According to the maximum principal stress theory of failure, the permissible twisting moment for the same shaft is:

A2 T

B√2 T

DT/2

Answer:

A. 2 T

Read Explanation:

The maximum permissible twisting moment in a circular shaft is 'T' according to the maximum shear stress theory (MPST) of failure, For the same shaft, the permissible twisting moment according to the maximum principal stress theory of failure is 2T.