NOCTI WELDING STUDY GUIDE 2025/2026 QUESTIONS
AND ANSWERS GRADED A+
✔✔compressed oxygen should never be mixed with oil because - ✔✔it'll cause an
explosion
✔✔Can you oxyfuel cut on concrete floor? - ✔✔no because it will explode
✔✔71T what does the T stand for - ✔✔Tublar
✔✔7012 the 2 stands for - ✔✔polarity and chemical composition
✔✔how do you measure the stick rod? - ✔✔measure the stick core
✔✔who approves the gas containers? - ✔✔ANSI
✔✔personal accidents mainly have_____ involved? - ✔✔Alcohol and drugs
✔✔60% duty cycle means? - ✔✔you can weld 6/10 min before over heating
✔✔undercut can be caused by - ✔✔traveling to fast
✔✔two plates lined up make a? - ✔✔butt weld
✔✔best joint configuration to weld sheet metal together would be a - ✔✔lap joint or
intermittent weld
✔✔when welding on ferrous metal using tig what do you do to the tungsten? - ✔✔grind
it to a point
✔✔approach the weld joint with a ____ degree angle with stick - ✔✔45 degree
✔✔when plasma cutting approach the part that needs to be cut with a __ degree -
✔✔75-90 degree angle
✔✔if you travel to fast or to slow when thermal cutting what happens - ✔✔you could
leave dross on the cut edges
✔✔a tig regulator has what attached? - ✔✔flow meter
✔✔pure tungsten has a what color ban? - ✔✔Green
✔✔Ferrous metal uses___ while tig and aluminum are____ - ✔✔DC- , AC
AND ANSWERS GRADED A+
✔✔compressed oxygen should never be mixed with oil because - ✔✔it'll cause an
explosion
✔✔Can you oxyfuel cut on concrete floor? - ✔✔no because it will explode
✔✔71T what does the T stand for - ✔✔Tublar
✔✔7012 the 2 stands for - ✔✔polarity and chemical composition
✔✔how do you measure the stick rod? - ✔✔measure the stick core
✔✔who approves the gas containers? - ✔✔ANSI
✔✔personal accidents mainly have_____ involved? - ✔✔Alcohol and drugs
✔✔60% duty cycle means? - ✔✔you can weld 6/10 min before over heating
✔✔undercut can be caused by - ✔✔traveling to fast
✔✔two plates lined up make a? - ✔✔butt weld
✔✔best joint configuration to weld sheet metal together would be a - ✔✔lap joint or
intermittent weld
✔✔when welding on ferrous metal using tig what do you do to the tungsten? - ✔✔grind
it to a point
✔✔approach the weld joint with a ____ degree angle with stick - ✔✔45 degree
✔✔when plasma cutting approach the part that needs to be cut with a __ degree -
✔✔75-90 degree angle
✔✔if you travel to fast or to slow when thermal cutting what happens - ✔✔you could
leave dross on the cut edges
✔✔a tig regulator has what attached? - ✔✔flow meter
✔✔pure tungsten has a what color ban? - ✔✔Green
✔✔Ferrous metal uses___ while tig and aluminum are____ - ✔✔DC- , AC
