Which one of the following loading is considered for the design of axles?
A. Bending moment only
B. Twisting moment only
C. Combined bending moment and twisting moments
D. Combined action of bending moment, twisting moment and axial thrust
Answer: Option A

D
axle subjected to both bending & twisting
Axles does experience twisting moment also, na??
Because axles are only meant for support. They do not transmit torque. So only designed for bending.
Option c