Machine Design
The strap end of a connecting rod of steam engine is joined by

Knuckle joint
Gib of cotter joint
Sleeve and cotter joint
Spigot socket cotter joint

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Machine Design
A fast and loose pulley drive is used when

Shafts are arranged at right angles and rotate in one definite direction
Shafts are arranged parallel and rotate in the same directions
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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