Question

which pac torch component is made of a high temperature plastic, has angled holes, and is designed to spin the cutting gas?

e
d
b
f
c
a

Explanation:

Identify the component function

Using the Swirl Ring Function knowledge point
The question asks for the Plasma Arc Cutting (PAC) torch component made of high-temperature plastic, featuring angled holes, and designed to spin the cutting gas. This description matches the swirl ring, which creates a vortex of gas around the electrode to center the arc.

Match the component to the diagram

Using the Swirl Ring Function knowledge point
Looking at the exploded view of the Miller PAC torch:

• A is the shield / shield cap.
• B is the retaining cup.
• C is the cutting tip / nozzle.
• D is the electrode.
• E is the swirl ring, located at the very back of the consumable stack next to the torch body.
• F is the torch body.

Therefore, component E is the swirl ring.

Answer:

• (A) E (Correct answer)
• (B) D
• (C) B
• (D) F
• (E) C
• (F) A