Strength of Materials - Engineering

Q1:

The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)

A x τ x D3

B x τ x D3

C x τ x D3

D x τ x D3

ANS:B - x τ x D3

T/j=q/r tortion equation.
J=(π*d^4)/32.
r=d/2.
Substitute in the equation