Workshop Technology
For gas welding, the pressure desired at the welding torch for oxygen is

70 to 280 kN/m²
280 to 560 kN/m²
7 to 103 kN/m²
560 to 840 kN/m²

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Workshop Technology
A progressive limit gauge has

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

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Workshop Technology
Linde welding uses

Oxidizing flame and leftward technique
Neutral flame and leftward technique
Carburising flame and rightward technique
Neutral flame and rightward technique

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