Question

The addition of a reactive gas to the shielding gas improved arc stability and permitted new metals to be welded. The first reactive gas utilized was

POSSIBLE ANSWERS:
O Nitrogen
O Argon
O Oxygen
O Helium
O Carbon dioxide

Answer 1

oxygen is the correct✅✔✅✔✅✔✅✔✅✔✔✔✅ answer of this❓ question