@⇒ Fuels and Combustion ⇒ 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 calorific value of L.D. converter gas is about __________ Kcal/Nm³ .
A.	1800 [Correct Answer]
B.	800 [Wrong Answer]
C.	4500 [Wrong Answer]
D.	10000 [Wrong Answer]
View Answer 4 -4 Explanation:- Answer : A Discuss it below : Click here for more comments


Q2.	Mott and Wheeler test is conducted on coke to find its
A.	reactivity with O₂. [Correct Answer]
B.	abradability. [Wrong Answer]
C.	phosphorus content. [Wrong Answer]
D.	volatile matter content. [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : Click here for more comments


Q3.	A coal having high amount of volatile matter
A.	would require smaller combustion chamber. [Wrong Answer]
B.	produces very little of tar and gas on carbonisation. [Wrong Answer]
C.	ignites easily and burns with long smoky flame. [Wrong Answer]
D.	all (a), (b) and (c). [Correct Answer]
View Answer 4 -1 Explanation:- Answer : D Discuss it below : Click here for more comments


Q4.	Coking time in narrow by-product coke ovens is around __________ hours.
A.	18 [Correct Answer]
B.	48 [Wrong Answer]
C.	8 [Wrong Answer]
D.	80 [Wrong Answer]
View Answer 1 -2 Explanation:- Answer : A Discuss it below : Click here for more comments


Q5.	Presence of free moisture in coal during its high temperature carbonisation
A.	reduces the coking time. [Wrong Answer]
B.	protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls. [Correct Answer]
C.	increases the loss of fine coal dust from the ovens when charging. [Wrong Answer]
D.	none of these. [Wrong Answer]
View Answer 1 -2 Explanation:- Answer : B Discuss it below : Click here for more comments

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