Manufacturing And Production Technology
A taper tap has

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

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Manufacturing And Production Technology
During normalizing process of steel, the specimen is heated

Above the upper critical temperature and cooled in furnace.
Between the upper and lower critical temperature and cooled in still air.
Between the upper and lower critical temperature and cooled in furnace.
Above the upper critical temperature and cooled in still air.

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Manufacturing And Production Technology
Side relief angle of a single point tool is the angle

By which the face of the tool is inclined sideways
By which the face of the tool is inclined towards back
Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool

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