Which color corresponds to 2% ceriated tungsten?

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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

Which color corresponds to 2% ceriated tungsten?

Explanation:
Color coding on TIG electrodes helps you identify the electrode’s composition and its best use. A 2% cerated tungsten contains CeO2, and in this exam’s color scheme that type is represented by gray. The cerium oxide boosts arc starting and helps keep the arc stable, which is why cerated electrodes are popular for a range of TIG jobs. While some brands use blue for ceritated tungsten, this particular question uses gray, so gray is the correct match. Green would indicate pure tungsten, and red indicates thoriated tungsten, leaving gray as the correct color for 2% ceritated in this context.

Color coding on TIG electrodes helps you identify the electrode’s composition and its best use. A 2% cerated tungsten contains CeO2, and in this exam’s color scheme that type is represented by gray. The cerium oxide boosts arc starting and helps keep the arc stable, which is why cerated electrodes are popular for a range of TIG jobs. While some brands use blue for ceritated tungsten, this particular question uses gray, so gray is the correct match. Green would indicate pure tungsten, and red indicates thoriated tungsten, leaving gray as the correct color for 2% ceritated in this context.

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