1000+ Fuels and Combustion Objective Type Questions and Answers - 1
Question: 1
Which of the following is the maximum coal producing state in India?
(A) Assam
(B) Jharkhand
(C) West Bengal
(D) Orissa
Ans: B
Jharkhand
Question: 2
Which of the following is not a manufactured fuel?
(A) charcoal
(B) colloidal fuels
(C) soft coke
(D) coke breeze
Ans: D
coke breeze
Question: 3
The function of an economizer in a boiler is to preheat the
(A) furnace oil
(B) pulverised coal
(C) combustion air
(D) feedwater
Ans: D
feedwater
Question: 4
Oxygen enrichment of combustion air does not result in increase of the
(A) heat transfer rate in the furnace
(B) stack loss
(C) oxygen in the flue gas
(D) flame temperature
Ans: C
oxygen in the flue gas
Question: 5
Which of the following has the highest flame velocity?
(A) C2H6
(B) CH4
(C) CO
(D) H2
Ans: D
H2
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