Q.

In order to find the maximum bending moment on the arms, it is assumed as a

A. simply supported beam carrying a uniformly distributed load over the arm
B. fixed at both ends
C. cantilever beam fixed at the hub and carrying a concentrated load at the free end of the rim
D. none of the mentioned
Answer» C. cantilever beam fixed at the hub and carrying a concentrated load at the free end of the rim
Explanation: due to the torque transmitted from the rim to the shaft or from the shaft to the rim, the arms will be subjected to bending, because they are required to carry the full torque load. in order to find out the maximum bending moment on the arms, it may be assumed as a cantilever beam fixed at the hub and carrying a concentrated load at the free end of the rim.
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