Discussion :: Furnace Technology
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Pick out the wrong statement.
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A.
Addition of methane to the furnace atmosphere reduces decarburising by hydrogen.
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B.
Nitrogen in presence of steam decar-burises high carbon steel, whereas hydrocarbon gases carburise the surface of steel at annealing temperatures.
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C.
Active nitrogen (formed by cracking ammonia at the metal surface) cause nitride formation with increase in surface hardness.
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D.
none of these.
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Answer : Option D
Explanation :
No answer description available for this question.
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