Technician A says that plasma arc cutting requires the use of a shielding gas. Technician B says the recommended electrode wire used for steel is AWS-ER70S6 . Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Plasma arc cutting does not require a shielding gas; it uses a high-velocity jet of ionized gas (plasma) to cut through metal. AWS-ER70S6 is a commonly recommended electrode wire for welding steel.

Technician a Says That Plasma Arc Cutting Requires the Use