Gas Metal Arc Welding MCQ with Answers

Gas Metal Arc Welding MCQ with Answers

41) Why the welder's cloth should be free from oil, grease etc, while welding?

Answer is:

To avoid catching fire

42) Which electrode wire is more suitable for carbon steel fabrication in GMAW process?

Answer is:

70S - 6

43) Which metal transfer process in GMAW produces strong weld with least spatter?

Answer is:

Pulsed transfer

44) Why the argon and CO₂ mixing gas used in FCAW?

Answer is:

Smooth spray transfer of melt

45) How the pre-heating temperature is checked before welding wrought iron or cast metals?

Answer is:

Temperature indicating crayon

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