@⇒ Furnace Technology ⇒ Chemical Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.
A.	50 [Wrong Answer]
B.	65 [Wrong Answer]
C.	85 [Correct Answer]
D.	99 [Wrong Answer]
View Answer 3 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q2.	In which of the waste heat recovery equipment, the flow of flue gas and air is alternately reversed after a fixed interval of time ?
A.	Recuperator [Wrong Answer]
B.	Regenerator [Correct Answer]
C.	Waste heat boiler [Wrong Answer]
D.	None of these [Wrong Answer]
View Answer 2 -1 Explanation:- Answer : B Discuss it below : Click here for more comments


Q3.	Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an
A.	blast furnace. [Wrong Answer]
B.	steam boiler. [Wrong Answer]
C.	salt bath furnace. [Correct Answer]
D.	annealing furnace. [Wrong Answer]
View Answer 3 -2 Explanation:- Answer : C Discuss it below : Click here for more comments


Q4.	In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by
A.	conduction [Wrong Answer]
B.	convection [Wrong Answer]
C.	radiation [Correct Answer]
D.	can not be predicted. [Wrong Answer]
View Answer 3 -2 Explanation:- Answer : C Discuss it below : Click here for more comments


Q5.	Air filtration in a furnace
A.	reduces its thermal efficiency. [Correct Answer]
B.	is indicated by flame sting out. [Wrong Answer]
C.	increases the flue gas temperature. [Wrong Answer]
D.	none of these. [Wrong Answer]
View Answer 2 -1 Explanation:- Answer : A Discuss it below : Click here for more comments

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