Manufacturing And Production Technology
A taper tap has

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

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Manufacturing And Production Technology
The lip clearance angle is the angle formed by the

Chisel edge and the lip as viewed from the end of a drill
Leading edge of the land with a plane having the axis of the drill
None of the listed here
Flank and a plane at right angles to the drill axis

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