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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 3
36.
Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent.
6
12
18
24
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Which of the following is not endothermic?
Cracking
Reforming
Gasification
Partial oxidation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
High sulphur content in a fuel __________ of the flue gases.
decreases the dew point
increases the dew point
reduces the combustion efficiency by limiting the permissible temperature reduction
, both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent.
15 to 25
35 to 45
55 to 75
75
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Fuel combustion is never cent per cent efficient due to
incomplete combustion
dry gas/stack gas loss
moisture loss
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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