AWS CRWT Practice Questions - AWS Certified Resistance Welding Technician (CRWT) Exam [aws-crwt]

In resistance welding, heat is generated primarily by which physical principle?

Arc plasma radiation at the electrode tip Joule heating (I squared R t) as current passes through the workpieces Induction heating from an external coil Friction between the electrodes and the sheet

Correct Answer:

Joule heating (I squared R t) as current passes through the workpieces

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