Workshop Technology
The metal is subjected to mechanical working for

All of these
Refining grain size
Reducing original block into desired shape
Controlling the direction of flow lines

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Workshop Technology
A progressive limit gauge has

Separate 'Go' and 'Not go' members
'Go' and 'Not go' member on the same side of the gauge
'Go' member at one end and 'Not go' member at the other end
None of the listed here

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