Manufacturing And Production Technology
A bottoming tap has

Its end tapered for about eight or ten threads
Its end tapered for about three or four 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 still air.
Above the upper critical temperature and cooled in furnace.
Between the upper and lower critical temperature and cooled in furnace.
Between the upper and lower critical temperature and cooled in still air.

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Manufacturing And Production Technology
The effect of setting a boring tool above center height leads to

Decrease in both effective rake angle and effective clearance angle
Increase in the effective rake angle and a decrease in the effective clearance angle
Decrease in the effective rake angle and an increase in the effective clearance angle
Increase in both effective rake angle and effective clearance angle

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