In GMAW, to achieve spray transfer mode which is essential for high-speed welding of thick sections, which combination of parameter adjustments is most appropriate?

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Multiple choice — select the best answer

ALower amperage and increase wire feed speed only
BDecrease voltage and use 100 percent $$CO_{2}$$
CIncrease voltage and amperage with an argon-rich shielding gas mixture
DMaintain low voltage with a high helium content gas

✓ Correct answer: C. Increase voltage and amperage with an argon-rich shielding gas mixture Spray transfer mode requires higher voltage and amperage settings combined with an argon-rich shielding gas to ensure stable arc characteristics and optimal weld quality.

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In GMAW, to achieve spray transfer mode which is essential for high-speed welding of thick sections, which combination of parameter adjustments is most appropriate?

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