Machine Design
A fast and loose pulley 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 same directions
Shafts are arranged parallel and rotate in the opposite directions

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
The flank of the tooth is the

Width of the tooth measured along the pitch circle
Surface of the tooth above the pitch surface
Surface of the top of the tooth
Surface of the tooth below the pitch surface

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
A hollow saddle key is

A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft
Provided in pairs at right angles and each key is to withstand torsion in one direction only
A taper key which fits in a key way of the hub and is flat on the shaft
A taper key which fits half in the key way of hub and half in the key way of shaft

ANSWER DOWNLOAD EXAMIANS APP