Welder Red Seal · Question
Which of the following shielding gases is commonly used for GMAW of aluminum, providing excellent arc stability and a clean weld?
100% Argon is the most common shielding gas for GMAW of aluminum because it provides excellent arc stability, good penetration, and a clean weld puddle. Mixture
Start free practice for Welder Red Seal
154 questions · no signup required · 40 free questions per day
Question: Which of the following shielding gases is commonly used for GMAW of aluminum, providing excellent arc stability and a clean weld?
Answer options: ✅ 100% Argon
- 75% Argon / 25% CO2
- 100% CO2
- 90% Helium / 10% Argon
Correct answer: 100% Argon
Explanation: 100% Argon is the most common shielding gas for GMAW of aluminum because it provides excellent arc stability, good penetration, and a clean weld puddle. Mixtures containing CO2 are generally not used for aluminum as CO2 can react with aluminum, leading to porosity and an unstable arc. Helium mixtures can be used for thicker aluminum but are less common for general applications.
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.