Welder Red Seal · Question
Backfire in oxy-fuel cutting often caused by:
Clean tip & adjust pressures.
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Question: Backfire in oxy-fuel cutting often caused by:
Answer options: ✅ Tip touching work / overheating
- Long hoses
- Cold weather
- Wrong color
Correct answer: Tip touching work / overheating
Explanation: Clean tip & adjust pressures.
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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
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