Which two of the following are common gases used for shielding in arc welding:
A)argon
B)carbon monoxide
C)fluorine
D)flux
E)helium
F)hydrogen
G)nitrogen

Question

Quizplus · Accepted Answer

Argon and helium are common gases used for shielding in arc welding. They are both inert gases, which means that they do not react with the metal being welded. This helps to protect the weld from oxidation and other contaminants.

Which Two of the Following Are Common Gases Used for Shielding