Mrs. Tiger Air Carbon Arc Cutting and Gouging

Front

Electrodes designed for​ A-CAC contain a​ rare-earth, _____?

Back

arc-stabilizing metal

Front

Dross or carbon deposits left on a surface to be welded will combine with the base metal to form​ _____?

Back

​hard, brittle zones and porosity

Front

To prevent​ overheating, the electrode tip to the​ V-groove head should be no farther than​ _____?

Back

6′′ ​(15 cm)

Front

Because​ A-CAC activities tend to blow molten metal considerable​ distances, it is important to station​ a(n) _____ in the​ A-CAC work area.

Back

fire watch

Front

In​ A-CAC gouging, groove depth is influenced by the electrode​ _____: weave and angle, travel angle and speed, length and weight, size and length.

Back

travel angle and speed

Front

Compressed air is supplied to the torch through a hose attached to a fitting on the​ _____?

Back

end of the torch cable

Front

The A-CAC process uses a high-current electric arc between the base metal and the end of a(n) _____ to melt the base metal.

Back

carbon-graphite electrode

Front

Torches with special washing heads in which the air jet orifices are located on only one side of the electrode are limited to cutting from​ _____ direction(s).

Back

one

Front

When cutting and gouging with A-CAC equipment, the jet orifices of the torch head(s) should be located _____?

Back

between the electrode and the base metal surface

Front

To wash a projection from a metal surface using A-CAC equipment, the electrode is typically used at a push angle of about _____ degrees to the base metal surface.

Back

55