type of flame is commonly used for welding mild steel.
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A.
Neutral
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B.
Reducing
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C.
Oxidising
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D.
Carburising
Correct Answer:
A. Neutral
Explanation:
A neutral flame is the preferred choice for welding mild steel because it provides a balanced chemical environment that does not alter the composition of the metal. This type of flame is produced by an equal ratio of oxygen and acetylene, resulting in a clean weld without adding excess carbon or causing oxidation. Because it maintains the integrity of the base metal while providing sufficient heat, it ensures a strong and reliable bond in mild steel applications.
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