DCEN stands for?

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Enhance your TIG welding skills with the Nebraska GTAW FFA TIG Welding Exam. This exam features multiple choice questions and realistic scenarios to prepare you for success in TIG welding.

Multiple Choice

DCEN stands for?

Explanation:
DCEN means the electrode is the negative terminal and the workpiece (earth) is positive. In GTAW, this polarity directs more heat into the workpiece and less at the electrode, which helps protect the tungsten electrode from rapid wear and is often preferred for thin metals. The other phrasings use nonstandard terms or switch components (like the earth being negative, or calling the electrode something other than an electrode), so they don’t describe this polarity correctly.

DCEN means the electrode is the negative terminal and the workpiece (earth) is positive. In GTAW, this polarity directs more heat into the workpiece and less at the electrode, which helps protect the tungsten electrode from rapid wear and is often preferred for thin metals. The other phrasings use nonstandard terms or switch components (like the earth being negative, or calling the electrode something other than an electrode), so they don’t describe this polarity correctly.

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