WELDING TECHNIQUES - Quiz

1) Which type of arc produces humming sound?

Long arc length Short arc length Normal arc length Too long arc length

2) Which types of arc length used in thin sheet metals?

Long arc length Short arc length Medium arc length Deep short arc length

3) Which type polarity used in sheet metal welding?

Rectifier set AC Transformer Reverse polarity Straight polarity

4) Which polarity is used in welding with heavy and super heavy coated electrodes?

AC Transformer Reverse polarity Straight polarity AC Motor generator

5) Which polarity used in welding cast iron?

Rectifier set AC Transformer Reverse polarity Straight polarity