GAS METAL ARC WELDING - Practice Mode
1) Why the welder's cloth should be free from oil, grease etc, while welding?
Correct Answer: To avoid catching fire
2) Which electrode wire is more suitable for carbon steel fabrication in GMAW process?
Correct Answer: 70S - 6
3) Which metal transfer process in GMAW produces strong weld with least spatter?
Correct Answer: Pulsed transfer
4) Why the argon and CO2 mixing gas used in FCAW?
Correct Answer: Smooth spray transfer of melt
Explanation:
.
5) How the pre-heating temperature is checked before welding wrought iron or cast metals?
Correct Answer: Temperature indicating crayon