Workshop Technology
A progressive limit gauge has

'Go' and 'Not go' member on the same side of the gauge
None of the listed here
'Go' member at one end and 'Not go' member at the other end
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
Porosity of the metal is largely eliminated
All of the listed here
Grain structure of the metal is refined

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Workshop Technology
The welding set up is said to have straight polarity, when

Work is connected to the negative terminal and the electrode holder to the positive terminal
Work is connected to the positive terminal and the electrode holder to the negative terminal
Work is connected to the positive terminal and the electrode holder is earthed
Work is connected to the negative terminal and the electrode holder is earthed

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Workshop Technology
The diaphragm moulding machine is used to

Produce uniform packing of sand in the mould
Give uniform sand hardness throughout the mould
Ram the sand harder at the back of the mould and softer on the pattern face
Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould

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