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

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

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Manufacturing And Production Technology
Jigs are used

For holding the work in milling, grinding, planing or turning operations
None of these
To check the accuracy of workpiece
For holding and guiding the tool in drilling, reaming or tapping operations

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Manufacturing And Production Technology
In determining the various forces on the chip, Merchant assumed that the

Only continuous chip without built-up-edge is produced
All of these
Cutting velocity remains constant
Cutting edge of the tool is sharp and it does not make any flank contact with the workpiece

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