47) What benefit we get out of a carburising flame?
Answer is:
Suitable for stellite, flame cleaning
Related Weldability of Steel MCQ with Answers
Answer is:
Hydrogen, lime dust, ammonia & water vapour
Answer is:
120 to 150 Kg/cm2
51) What thickness of plate, gas welding by forehand technique can be used without edge preparation?
Answer is: