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

What metals can produce poisonous metal fumes that must be collected in a fume collection system to prevent air pollution?

The power switch on most handheld torches has a(n) _________ as part of the switch.

____________________ can extend the life of the stack with up to 800 to 1500 starts.

What happens if the standoff distance becomes too close?

What tip material is resistant to oxidation at high temperatures?

The ____ surrounding the nozzle tip is used to control the potential hazards of light, fumes, noise, and other pollutants.

The earliest gas tungsten arc welding process used ____.

Explain how the gouge groove's shape can be controlled or changed in plasma arc gouging.

The plasma created by an arc ____.

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

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

The spacing between the electrode tip and the nozzle tip is called ____________________.

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

The metal parts of a plasma torch are usually made of ________ or ____________.

The ____ is made of a special plastic that is resistant to high temperatures, ultraviolet light, and impact.

The temperature of plasma in an unrestricted arc is about ____ degrees Fahrenheit.

Any material that is ____________________ can be cut using the PAC process.

The electrode tip of a plasma torch is often made of copper with a ________ imbedded in the tip

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

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