Machine Design
The objective of caulking in a riveted joint is to make the joint

Free from stress
Stronger in tension
Leak-proof
Free from corrosion

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Machine Design
An open belt drive is used when

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

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