Exam 8: Plasma Arc Cutting Equipment, Setup, and Operation

The ____ has a small, cone-shaped, constricting orifice in the center.

Some small plasma cutting machines have ______ and can be used on 120V power.

The ____________________ distance is the distance from the nozzle tip to the work.

The nozzle or gas shield of a plasma torch is made of ____.

Keeping the diameter of the nozzle orifice ____ will keep the kerf ____.

Which gas produces the fastest and cleanest cuts on mild steels?

A(n) ____________________ is used to reduce the noise level, control the plasma light, trap the sparks, eliminate most of the fume hazard, and reduce distortion.

The nozzle is sometimes called the ____________________.

What happens to the plasma column when water is injected around the plasma stream?

Explain how high-frequency alternating current and a pilot arc can be used to start a plasma arc torch.

Manual plasma arc cutting is ____.

The voltage required for plasma arc processes range from ____ open circuit.

All nontransfer-type plasma torches must have ________________.

What is the term used to describe the plasma cutting process that uses two different gasses?

Plasma cutting machines can cut mild steel ranging from _____ to _____or more in thickness.

Explain how watts are calculated.

Why should deionized water be used for cooling high-amperage plasma torches?

Describe the history of the development of plasma arc cutting.

What happens if the standoff distance is increased?

Explain how metal becomes distorted during the welding process.