Workshop Technology
A progressive limit gauge has

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

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Workshop Technology
During hot working of metals

Porosity of the metal is largely eliminated
All of the listed here
Grain structure of the metal is refined
Mechanical properties are improved due to refinement of grains

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