General Studies · Arc Welding
In the Shielded Metal Arc Welding (SMAW) process, what role does the heat generated by the electric arc play?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It acts to rapidly cool the heat-affected zone of the base metal.
- 2It simultaneously melts the base metal and the tip of the consumable electrode.✓
- 3It strictly melts the consumable electrode without affecting the base metal.
- 4It serves solely to react with the coating to form atmospheric shield gases.
Correct answer
It simultaneously melts the base metal and the tip of the consumable electrode.
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