WELDABILITY OF STEEL - Quiz

1) What will happen if the current is low while arc welding?

Formed over lap Spatterns are more Electrode fused speedly Base metal edges not melt properly

2) What is the use of intermediate tacks on a weld setting of plates?

To reduce the welding run To control defects in weld joint To speed up the welding joint Align and to maintain the position of joint

3) What is the main reason, that aluminium is difficult to weld?

Less weight Oxide formation High thermal conductivity Better strength weight ratio

4) What method of heating is done to remove bending distortion of weld joint with wedge shaped area?

Spot heating Pipe - needle heating Triangular heating Checker - board heating