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

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A GTAW welder notices the tungsten tip is balled from previous DCEP use. What is the correct action before DCEN welding on carbon steel?

Regrind the tungsten to a pointed tip along its length on a dedicated grinder Leave the ball tip because it improves arc stability on carbon steel Break off the tip by tapping it on the bench Switch to AC to use the existing ball tip

Correct Answer:

Regrind the tungsten to a pointed tip along its length on a dedicated grinder

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