Manufacturing And Production Technology
In which of the following machine, the work is usually rotated while the drill is fed into work?

Radial drilling machine
Sensitive drilling machine
Deep hole drilling machine
Gang drilling machine

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Manufacturing And Production Technology
Which of the following statement is correct about hot machining?

All of these
The rate of tool wear is lower.
It is used for machining high strength and high temperature resistant materials.
It requires less power than machining metals at room temperature.

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