GAS METAL ARC WELDING - Practice Mode

1) Which type of electrodes are used in MAG/CO2 welding?
Correct Answer: Bare wire electrode
2) What is the range of electrode for MAG / CO2 welding?
Correct Answer: 0.8 to 1.6 mm
3) What type of operation is generally used in GMAW?
Correct Answer: Semi automatic
4) Which heat treatment of steel increases hardness, but decreases strength and ductility?
Correct Answer: Hardening
5) Which heat treatment process produces only outer surfaces of job hardened, to some depth?
Correct Answer: Case hardening
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