Machine Design
The centrifugal tension in belts

Increases the belt tension without increasing power transmission
Increases the power transmitted
Increase the wrap angle
Decreases the power transmitted

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Machine Design
A bolt of uniform strength can be developed by

Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt
Keeping the core diameter smaller than the diameter of the unthreaded portion
Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt
None of these

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