Manufacturing And Production Technology
A bottoming tap has

Full threads for the whole of its length
None of these
Its end tapered for about three or four threads
Its end tapered for about eight or ten threads

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Manufacturing And Production Technology
Which of the following statement is correct for oblique cutting system?

The chip flows on the tool face at an angle less than 90° with the normal on the cutting edge
The cutting edge is inclined at an angle less than 90° with the normal to the velocity of the tool
All of these
Frequently, more than one cutting edges are in action

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Manufacturing And Production Technology
Trepanning is an operation of

Making a cone-shaped enlargement of the end of a hole
Sizing and finishing a small diameter hole
Smoothing and squaring the surface around a hole
Producing a hole by removing metal along the circumference of a hollow cutting tool

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