General Studies · Manufacturing Processes
In manual metal arc welding, an electric arc is generated by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1heating the electrode with an auxiliary gas flame
- 2connecting both electrode and workpiece to the same electrical terminal
- 3using high-frequency sound waves to ionize air gap
- 4touching and then momentarily separating the electrode from the workpiece✓
Correct answer
touching and then momentarily separating the electrode from the workpiece
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