Manufacturing And Production Technology
The maximum possible draft in cold rolling of sheet increases with the

Decrease in coefficient of friction
Decrease in roll radius
Decrease in roll velocity
Increase in coefficient of friction

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Manufacturing And Production Technology
In centreless grinding, work place centre will be

On the line joining the two wheel centres
Above the line joining the two wheel centres
At the intersection of the line joining the wheel centres with the work place plane
Below the line joining the two wheel centres

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Manufacturing And Production Technology
In plunge grinding

The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face

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