Workshop Technology
In submerged arc welding, an arc is produced between a

Bare metal electrode and the work
Metal electrode and the work
Carbon electrode and the work
Two tungsten electrodes and the work

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Workshop Technology
A progressive limit gauge has

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

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