NCCER welding level 1 module 4 (air-carbon
arc cutting/gouging) ehove- Qs & As
One of the primary uses for air-carbon arc cutting (A-CAC) is___. Correct Ans-To gouge
weld grooves, to back-gouge welds, and to gouge out defective welds
When the electrode is gripped in the torch handle, the electrode tip should be no further from the
heads than ___. Correct Ans-6" (15 cm)
Electrodes designed for A-CAC use are copper coated and contain an arc-stabilizing ingredient
referred to as ___. Correct Ans-A rare-earth metal
One of the procedures to prevent fires or explosions during A-CAC work is to make sure ___.
Correct Ans-That the carbon arc electrodes to be used are completely dry.
An A-CAC concentric system has compressed air passing through ___. Correct Ans-The
power conductor
Washing is a process used to prepare the surface of the base metal ____. Correct Ans-By
removing objects and projections from the surface
If an electrode holder becomes cracked or worn, ___. Correct Ans-It may be possible to
replace only the damaged portion
arc cutting/gouging) ehove- Qs & As
One of the primary uses for air-carbon arc cutting (A-CAC) is___. Correct Ans-To gouge
weld grooves, to back-gouge welds, and to gouge out defective welds
When the electrode is gripped in the torch handle, the electrode tip should be no further from the
heads than ___. Correct Ans-6" (15 cm)
Electrodes designed for A-CAC use are copper coated and contain an arc-stabilizing ingredient
referred to as ___. Correct Ans-A rare-earth metal
One of the procedures to prevent fires or explosions during A-CAC work is to make sure ___.
Correct Ans-That the carbon arc electrodes to be used are completely dry.
An A-CAC concentric system has compressed air passing through ___. Correct Ans-The
power conductor
Washing is a process used to prepare the surface of the base metal ____. Correct Ans-By
removing objects and projections from the surface
If an electrode holder becomes cracked or worn, ___. Correct Ans-It may be possible to
replace only the damaged portion
