Question

The torsional rigidity of a shaft is expressed by

• A. Maximum torque it can transmit
• B. Number of cycles it undergoes before failure
• C. Elastic limit up to which it can resist torsion, shear and bending stresses
• D. Torque required to produce a twist of one radian per unit length of shaft

Answer 1

The correct option is D Torque required to produce a twist of one radian per unit length of shaft

The minimum torque required to deform an object by twisting through a unit dimension is known as torsional rigidity. In this case, for twisting the dimension is in angle of twist = 1 radian
The correct option is option (d)