WELDING TECHNIQUES - Quiz

1) Which of the following gas is used in TIG welding?

Helium Oxygen Hydrogen Carbon dioxide

2) Which of the accessories should be worn during overhead welding?

Helmet Sun glass Hand screen Welding goggles

3) Which one of the following do not assist fire?

Fuel Oxygen Ignition Nitrogen

4) Which type of polarity is used in aluminium welding?

Rectifier set AC Transformer Reverse polarity Straight polarity

5) What is polarity?

Circuit of current Direction of current Open circuit of current Opp direction of current