ARC AND GAS WELDING - Quiz

1) Which is the safety method for carry the oxy-acetylene gas cylinders?

Rolling Sliding Dragging Use a trolly

2) Which is the stage of heat treatment process?

Cooling the metal Heating the metal slowly Hold at a given temperature Heat and cool the metal as soon as possible

3) What is the importance of case hardening?

To increase softness To with stand wear resistance To withstand heavy load To decrease the brittleness

4) Which valve to be closed first while gas flame snaps out and back fire?

Oxygen valve in cylinder Oxygen valve at blow pipe Acetylene valve in cylinder Acetylene valve at blow pipe

5) Which gas cutting process is suitable for all position, location and under water?

Gas cutting Plasma cutting Manual cutting Machine cutting