NCCER welding level 1 module 4 (air-carbon arc cutting/gouging) ehove Exam 2025 Questions & Answers with 100% Correct Answers | Verified

One of the primary uses for air-carbon arc cutting (A-CAC) is___. - To gouge weld grooves, to backgouge 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 ___. - 6" (15 cm) Electrodes designed for A-CAC use are copper coated and contain an arc-stabilizing ingredient referred to as ___. - A rare-earth metal One of the procedures to prevent fires or explosions during A-CAC work is to make sure ___. - That the carbon arc electrodes to be used are completely dry. An A-CAC concentric system has compressed air passing through ___. - The power conductor Washing is a process used to prepare the surface of the base metal ____. - By removing objects and projections from the surface If an electrode holder becomes cracked or worn, ___. - It may be possible to replace only the damaged portion The A-CAC Process uses a high-current electric arc between the base metal and the end of a(n) ___. - Carbon-graphite Electrode to melt the base metal An A-CAC Torch requires compressed air to blow the ___. - Molten metal away from the cut When cutting and gouging with a A-CAC Equipment, the jet orifices of the torch head(s) should be located ___. - Between the electrode and the base metal surface To prevent overheating, the electrode tip to the V-groove head should be no farther than___. - 6" (15 cm)