Q.

Due to the centrifugal force acting on the rim, the flywheel arms will be subjected to

A. tensile stress
B. compressive stress
C. shear stress
D. none of the mentioned
Answer» A. tensile stress
Explanation: the tensile stress in the rim due to the centrifugal force, assuming that the rim is unstrained by the arms, is determined in a similar way as a thin cylinder subjected to internal pressure.
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