Question

In case of shaft, the torque per radian twist is known as:

• A. polar sectional moment
• B. resisting torque
• C. torsional moment resistance
• D. torsional stiffness

Answer 1

Answer:

D. torsional stiffness

The torque per radian twist in a shaft is known as torsional stiffness (k), which is given by k = (GJ) / L Here, GJ is the torsional rigidity of the shaft, and Torsional rigidity is defined as torque per unit angular twist over of the shaft. The torsional equation for the shaft is $T / J = \tau / r = (G\theta)/L$