Question

shielding gas protects both the tungsten electrode and the weld puddle from oxygen during welding.

true
false

Explanation:

Analyze shielding gas purpose

Shielding gas displaces atmospheric oxygen and nitrogen.

Evaluate protection targets

It protects the hot tungsten electrode from oxidizing.
It protects the molten weld puddle from contamination.

Determine statement validity

Both targets are protected, making the statement true.

Answer:

• True (Correct answer)
• False