Question

what is the primary function of plasma arc cutting (pac)?
a uses a carbon electrode to gouge metal
b generates a plasma jet to cut through metal
c joins metal pieces together using a filler rod
d uses oxygen and fuel gas to cut through metal

Explanation:

Plasma Arc Cutting (PAC) uses a high-temperature plasma jet to melt and blow away metal, enabling precise cutting. Option A describes carbon arc gouging, C describes welding with filler rods, D describes oxy-fuel cutting. Only B matches PAC's primary function.

Answer:

B. generates a plasma jet to cut through metal