Machine Design
In thrust bearings, the load acts

Along the axis of rotation
Parallel to the axis of rotation
In any direction
Perpendicular to the axis of rotation

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Machine Design
A fast and loose pulley drive is used when

Shafts are arranged parallel and rotate in the same directions
Shafts are arranged at right angles and rotate in one definite direction
Shafts are arranged parallel and rotate in the opposite directions
Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft

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