Manufacturing And Production Technology
It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?

Radial drilling machine
Gang drilling machine
Sensitive drilling machine
Multiple spindle drilling machine

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

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

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