Welder Red Seal · Question
During oxy-fuel cutting of a heavy steel plate, the cutting oxygen jet is momentarily interrupted. What is the immediate consequence of this interruption?
The cutting oxygen is responsible for oxidizing the steel and blowing away the molten slag. If the cutting oxygen jet is interrupted, the oxidation process stop
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Question: During oxy-fuel cutting of a heavy steel plate, the cutting oxygen jet is momentarily interrupted. What is the immediate consequence of this interruption?
Answer options:
- The preheat flames will extinguish immediately. ✅ The cutting process will stop, and the cut will close due to slag formation.
- The work material will rapidly cool, causing distortion.
- The torch will backfire due to gas mixing in the nozzle.
Correct answer: The cutting process will stop, and the cut will close due to slag formation.
Explanation: The cutting oxygen is responsible for oxidizing the steel and blowing away the molten slag. If the cutting oxygen jet is interrupted, the oxidation process stops, and the molten slag will not be expelled, leading to the cut closing and the process stopping.
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