What is the length of the arc generally?
(a) 1mm – 2mm
(b) 2mm – 3mm
(c) 3mm – 4mm
(d) 4mm – 5mm
I have been asked this question by my college professor while I was bunking the class.
The doubt is from Arc Welding topic in portion Welding and Related Processes of Casting-Forming-Welding II