NOCTI WELDING EXAM SCRIPT 2025/2026 QUESTIONS
AND ANSWERS GRADED A+
✔✔When oxyfuel cutting, 1/8 inch to 1/4 inch is the correct distance from the preheat
flame cone to the - ✔✔base metal
✔✔In PAC, kerf refers to - ✔✔the gap produced by cutting
✔✔Compressed air must be _____ in the PAC process. - ✔✔completely dry
✔✔In air carbon arc cutting, compressed air is used to - ✔✔dislodge molten material
✔✔Electrodes used for CAC-A are made of carbon or - ✔✔graphite
✔✔When plasma arc cutting, dross can form on the bottom side of the metal due to -
✔✔travel speed too fast or slow
✔✔What is the duty cycle of a welding power supply that can run for seven minutes out
of every 10-minute period without overheating? - ✔✔70 percent
✔✔When using reverse polarity, the electrode will be - ✔✔positive
✔✔Polarity on SMAW equipment must be set prior to welding to eliminate - ✔✔damage
to equipment
✔✔What is the minimum tensile strength of an E6012 electrode? - ✔✔60,000 psi
✔✔For what process is a DC constant-voltage power source used? - ✔✔GMAW
✔✔One possible type of metal transfer when employing the GMAW consumable
electrode process is _____ transfer. - ✔✔globular
✔✔What must be matched to the electrode diameter? - ✔✔contact tip
✔✔A constant current power supply is required for - ✔✔GTAW
✔✔The flow meter controls_____ when GTAW welding. - ✔✔shielding gas volume
✔✔An example of an inert gas is - ✔✔helium
✔✔In GTAW of aluminum, the most common shielding gas used is - ✔✔pure argon
AND ANSWERS GRADED A+
✔✔When oxyfuel cutting, 1/8 inch to 1/4 inch is the correct distance from the preheat
flame cone to the - ✔✔base metal
✔✔In PAC, kerf refers to - ✔✔the gap produced by cutting
✔✔Compressed air must be _____ in the PAC process. - ✔✔completely dry
✔✔In air carbon arc cutting, compressed air is used to - ✔✔dislodge molten material
✔✔Electrodes used for CAC-A are made of carbon or - ✔✔graphite
✔✔When plasma arc cutting, dross can form on the bottom side of the metal due to -
✔✔travel speed too fast or slow
✔✔What is the duty cycle of a welding power supply that can run for seven minutes out
of every 10-minute period without overheating? - ✔✔70 percent
✔✔When using reverse polarity, the electrode will be - ✔✔positive
✔✔Polarity on SMAW equipment must be set prior to welding to eliminate - ✔✔damage
to equipment
✔✔What is the minimum tensile strength of an E6012 electrode? - ✔✔60,000 psi
✔✔For what process is a DC constant-voltage power source used? - ✔✔GMAW
✔✔One possible type of metal transfer when employing the GMAW consumable
electrode process is _____ transfer. - ✔✔globular
✔✔What must be matched to the electrode diameter? - ✔✔contact tip
✔✔A constant current power supply is required for - ✔✔GTAW
✔✔The flow meter controls_____ when GTAW welding. - ✔✔shielding gas volume
✔✔An example of an inert gas is - ✔✔helium
✔✔In GTAW of aluminum, the most common shielding gas used is - ✔✔pure argon
