Welder Red Seal · Question
Which of the following gases is commonly used as a plasma gas for cutting stainless steel to achieve a dross-free cut and good surface finish?
Nitrogen is a common plasma gas for cutting stainless steel as it provides a clean, dross-free cut and good surface finish. Oxygen is typically used for mild st
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Question: Which of the following gases is commonly used as a plasma gas for cutting stainless steel to achieve a dross-free cut and good surface finish?
Answer options:
- Oxygen
- Shop air ✅ Nitrogen
- Propane
Correct answer: Nitrogen
Explanation: Nitrogen is a common plasma gas for cutting stainless steel as it provides a clean, dross-free cut and good surface finish. Oxygen is typically used for mild steel, and shop air is a versatile, less expensive option for various metals but may not produce the best finish on stainless.
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