Workshop Technology
A progressive limit gauge has

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

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Workshop Technology
Swab is used for

Cleaning the moulding sand
Moistening the sand around the edge before removing pattern
Smoothing and cleaning out depressions in the mould
Reinforcement of sand in the top part of the moulding box

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