GTAW NC II Practice Questions - TESDA Gas Tungsten Arc Welding (GTAW) NC II Competency Assessment Exam

For GTAW on carbon steel, which polarity typically places the majority of heat on the workpiece?

Direct Current Electrode Negative (DCEN) Direct Current Electrode Positive (DCEP) Alternating Current (AC) only No polarity — GTAW uses only AC

Correct Answer:

Direct Current Electrode Negative (DCEN)

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