General Studies · Manufacturing Processes
Which of the following is NOT a phenomenon that occurs in a welding arc?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Thermionic emission of electrons
- 2Emission of ultraviolet (UV) rays
- 3Avalanche motion of electrons
- 4Formation of the inner cone of a gas flame✓
Correct answer
Formation of the inner cone of a gas flame
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