Workshop Technology
A progressive limit gauge has

'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
None of the listed here
Separate 'Go' and 'Not go' members

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Workshop Technology
During hot working of metals

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

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Workshop Technology
Rotary swaging

Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface
Is used for reducing the diameters of round bars and a tube by rotating dies which open and close rapidly on the work
Is extensively used for making bolts and rivets
Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part

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