Red Seal Welder Exam (Interprovincial)
C. Cutting and gouging: practice questions
Our Red Seal Welder bank has 45 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
In the Steelworker manual, which hose colour connects to the oxygen regulator?
- Red
- Black
- Yellow
- Green
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D. Green — The green hose connects to the oxygen regulator and the red hose to the fuel gas.
Question 2
The narrow slot left by a cutting process is called the:
- Drag
- Root face
- Bevel
- Kerf
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D. Kerf — The narrow slit formed in the metal as the cut progresses is called the kerf.
Question 3
Why should molten metal from CAC-A be directed away from the operator and others?
- It is radioactive
- It sprays some distance from the cut
- It cools too fast to cause burns
- It turns instantly into a toxic gas that sinks to floor level
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B. It sprays some distance from the cut — Always cut away from the operator, as molten metal sprays some distance from the cutting action.
Question 4
A flashback is the flame burning back inside the torch, usually with a shrill hissing. What should you close first?
- The fuel cylinder valve
- The torch oxygen valve
- The oxygen cylinder valve
- Nothing; let it burn out
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B. The torch oxygen valve — Close the torch oxygen valve at once to stop the flashback, then the gas valve and the regulators; find the cause before relighting.
Question 5
Under OSHA 1910.253, hose showing leaks, burns or worn places must be:
- Used until the end of the shift
- Wrapped in tape and kept in service
- Repaired or replaced before use
- Moved to oxygen service only
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C. Repaired or replaced before use — 1910.253(e)(5)(iv): hose showing leaks, burns, worn places or other defects rendering it unfit for service shall be repaired or replaced.