Workshop Technology
Scribing block is used to

Hold the round bars during marking
Check the trueness of flat surfaces
Check the surface roughness
Locate the centres of round bars

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Workshop Technology
A progressive limit gauge has

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

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