Question

The presence of arc blower makes good quality welds.

(a) True

(b) False

I have been asked this question by my college director while I was bunking the class.

My question is from Arc Welding Equipment in division Welding and Related Processes of Casting-Forming-Welding II

Answer 1

The correct answer is (b) False

For explanation: A flow of large amount of current causes the generation of arc blower. The space around the arc and the metal always experience magnetic fields, causing the currents to get squared. This results in an unstable behavior by the arc blower, which is therefore not desirable for good welds.