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WorksheetsWelding CAC-A
Total questions: 10
Worksheet time: 5mins
The CAC-A process uses a high current electric arc between the base metal and the end of an
Carbon graphite electrode
Pencil Graphite
Don't know
Pen ink
Electrodes designed for CAC-A gouging contain a rare earth
Glass particles
Water based zinc
Arc stabilizing metal
Charcoal to heat metal
The most common type of carbon electrodes are
Round Electrode
Don't know
Triangular
Split
To prevent overheating the electrode tip to V-groove head should be no farther than
Don't know
6"
1"
17.25"
Compressed air is supplied to the torch through a hose attached to a fitting on the
On the torch tip
Don't know
Under the machine
End of torch cable
In CAC-A gouging, groove depth is influenced by the electrode
Speed only
Travel angle and speed
Don't Know
Angle only
Dross or carbon deposits left on a surface to be welded on will combine with the base metal to form
Stronger welds
Oxidation
Don't know
Hard brittle zones and porosity
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
9 Directions
1 Directions
4 Directions
7 Directions
Light duty gouging or cutting is typically done with a
200 amp machine
30 amp machine
1000 amp machine
500 amp machine
The airflow rate on a heavy duty machine can be rated up to
10 CFM
50 CFM
20 CFM
5 CFM
