A bending moment of 400 kNm and a twisting moment of 300 kNm is applied on a circular solid shaft. If direct stress based on maximum principal stress theory is σ and shear stress based on maximum shear stress theory is τ, then \(\frac{\sigma }{\tau }\) is:

A bending moment of 400 kNm and a twisting moment of 300 kNm is applie

1.	A bending moment of 400 kNm and a twisting moment of 300 kNm is applied on a circular solid shaft. If direct stress based on maximum principal stress theory is σ and shear stress based on maximum shear stress theory is τ, then \(\frac{\sigma }{\tau }\) is:
A.	\(\frac{5}{9}\)
B.	\(\frac{5}{3}\)
C.	\(\frac{3}{5}\)
D.	\(\frac{9}{5}\)
Answer» E.

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A bending moment of 400 kNm and a twisting moment of 300 kNm is applied on a circular solid shaft. If direct stress based on maximum principal stress theory is σ and shear stress based on maximum shear stress theory is τ, then \(\frac{\sigma }{\tau }\) is:

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