Welder Red Seal · Question
During carbon arc gouging of a faulty weld on a 20 mm thick steel plate, a welder notices excessive carbon deposits forming on the gouged surface. What is the most likely cause of this issue?
Excessive carbon deposits during carbon arc gouging are often caused by insufficient air pressure. The air jet is responsible for blowing away the molten metal
Start free practice for Welder Red Seal
154 questions · no signup required · 40 free questions per day
Question: During carbon arc gouging of a faulty weld on a 20 mm thick steel plate, a welder notices excessive carbon deposits forming on the gouged surface. What is the most likely cause of this issue?
Answer options:
- Too high of an arc voltage ✅ Insufficient air pressure
- Excessive travel speed
- Using a smaller diameter electrode
Correct answer: Insufficient air pressure
Explanation: Excessive carbon deposits during carbon arc gouging are often caused by insufficient air pressure. The air jet is responsible for blowing away the molten metal and carbon particles; if the pressure is too low, these residues are not effectively removed.
Start free practice for Welder Red Seal
154 questions · no signup required · 40 free questions per day
More about Welder Red Seal
Related Questions
- A welder is fabricating a pressure vessel component using FCAW-G with an E70T-1 wire. The procedure specifies
- A welder is preparing to weld 20 mm (0.8 in) thick high-strength low-alloy (HSLA) steel using FCAW-G. The weld
- A structural steel fabricator is using FCAW-S (E71T-8 wire) to weld heavy sections of structural steel in an o
- When performing FCAW-G (gas-shielded flux-cored arc welding), a welder notices the arc is unstable and the wir
- A structural welder is performing overhead FCAW-G on 12 mm (0.5 in) thick steel with an E71T-1 wire. The weld
- A welder is setting up an FCAW-S machine for welding in a remote location without access to external shielding
More for Welder Red Seal candidates
Practice tests
Question explanations
- A welder is fabricating a pressure vessel component using FCAW-G with an E70T-1 wire. The procedure specifies
- A welder is preparing to weld 20 mm (0.8 in) thick high-strength low-alloy (HSLA) steel using FCAW-G. The weld
- A structural steel fabricator is using FCAW-S (E71T-8 wire) to weld heavy sections of structural steel in an o
- When performing FCAW-G (gas-shielded flux-cored arc welding), a welder notices the arc is unstable and the wir
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Welder Red Seal Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.