Welder Red Seal · Question
Upon completing a fillet weld using FCAW-G, the welder notices tiny, glassy slag inclusions along the toe of the weld. What is the most likely cause?
Tiny slag inclusions along the toe of the weld, often called 'wagon tracks,' are commonly caused by improper electrode angle and/or insufficient manipulation th
Start free practice for Welder Red Seal
154 questions · no signup required · 40 free questions per day
Question: Upon completing a fillet weld using FCAW-G, the welder notices tiny, glassy slag inclusions along the toe of the weld. What is the most likely cause?
Answer options:
- Excessive travel speed.
- Insufficient weave technique.
- Inadequate cleaning of the base metal. ✅ Improper electrode angle without sufficient manipulation.
Correct answer: Improper electrode angle without sufficient manipulation.
Explanation: Tiny slag inclusions along the toe of the weld, often called 'wagon tracks,' are commonly caused by improper electrode angle and/or insufficient manipulation that traps slag at the weld toes during solidification. Excessive travel speed might lead to undercut, and poor cleaning could cause porosity or surface contamination, but not specifically these slag inclusions.
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.