Question is ⇒ Fuel economy in an industrial furnace operation can not be achieved by the use of, Options are ⇒ (A) stoichiometric combustion air., (B) non-preheated combustion air., (C) combustion air not enriched with oxygen., (D) recupterators., (E) , Leave your comments or Download question paper.

Question is ⇒ Fuel economy in an industrial furnace operation can not be achieved by the use of, Options are ⇒ (A) stoichiometric combustion air., (B) non-preheated combustion air., (C) combustion air not enriched with oxygen., (D) recupterators., (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Fuel economy in an industrial furnace operation can not be achieved by the use of
A.	stoichiometric combustion air. [Correct Answer]
B.	non-preheated combustion air. [Wrong Answer]
C.	combustion air not enriched with oxygen. [Wrong Answer]
D.	recupterators. [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒ Pick out the wrong statement.
Addition of methane to the furnace atmosphere reduces decarburising by hydrogen.
Nitrogen in presence of steam decar-burises high carbon steel, whereas hydrocarbon gases carburise the surface of steel at annealing temperatures.
Active nitrogen (formed by cracking ammonia at the metal surface) cause nitride formation with increase in surface hardness.
none of these.

⇒ The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent.
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