question_answer

                            A circular solid shaft is subjected to a bending of 400 kN.m and a twisting moment of 300 kN.m. On the basis of the maximum principal stress theory the direct stress is o- and according to the maximum shear stress theory, the shear stress is t The ratio \[\sigma /t\] is

A) \[\frac{1}{5}\]                          

B) \[\frac{3}{4}\]

C) \[\frac{9}{5}\]                          

D) \[\frac{11}{6}\]