____ rapidly expand and push the surrounding air away from the molten weld pool.
A) Oxides
B) Alloying elements
C) Slag formers
D) Gas formers

Question

Quizplus · Accepted Answer

Gas formers, such as shielding gases or fluxes, are used in welding to rapidly expand and push the surrounding air away from the molten weld pool. This creates a protective atmosphere that prevents oxidation and helps ensure a high-quality weld.

____ Rapidly Expand and Push the Surrounding Air Away from the Molten