kn081993

ok sir

sir i watched this topic but i am not getting any help ..i m not getting any formula for answer of this question..pls help...

Q.which type of welding technique is suitable for gray cast iron and why ?

In a particular arc welding operation 5 mm thick steel plate requires 40 A current , what should be the current requirement for welding 10 mm thickness plates? a) 10...

In a particular arc welding operation 5 mm thick steel plate requires 40 A current , what should be the current requirement for welding 10 mm thickness plates? a) 10...

can anybody give the correct answer of this question? in a particular arc welding operation 5 mm thick steel plate require 40 A current , what should be the current...