Exam 8: Plasma Arc Cutting

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

​Why would some large plasma cutting machines have two gas hoses?

In plasma arc gouging, the torch is held at approximately a ____ degree angle to the metal surface.

​What effect does the swirling of the plasma gas have?

The power switch on a handheld torch must have a _________ as part of the switch.

​What will happen if the gas flow is too high?

The nozzle is sometimes called the ____________________.

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

____ are good metals to gouge because there is almost no cleanup.

Sheets can be stacked in the PAC process because PAC does not rely on the ____________________ between stacked parts.

​All nontransfer-type plasma torches must have ________________.

____________________ is the metal compound that resolidifies and attaches itself to the bottom of a cut.

The most common method to establish a current path through the gas uses a high-frequency ____________________ current carried through the conductor, the electrode, and back from the nozzle tip.

​The sides of the plasma stream are not parallel, so one side of the cut will have a bevel of ______.

The temperature created when the arc is concentrated to form a plasma is about ____degrees Fahrenheit.

Manual plasma arc cutting is ____.

​What may need to be done as the nozzle and electrode wear?

____________________ are units of measure for electrical power.

​What happens if the standoff distance is increased?

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