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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 1
21.
A coal having high amount of volatile matter
would require smaller combustion chamber.
produces very little of tar and gas on carbonisation.
ignites easily and burns with long smoky flame.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Carbon Content by weight in air dried wood may be about __________ percent.
10
25
50
80
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Which of the following accentuates clinker-ing trouble on furnace grate burning coal ?
Low reactivity of carbonised residue containing high proportions of iron & sulphur.
Low forced draught and fuel bed temperature.
Thick fire bed and preheated primary air.
All (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Natural draught produced by a chimney depends upon the
density of the chimney gases.
height of the chimney.
both (a) and (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Gross & net calorific value is the same for
blast furnace gas
coke oven gas
L.D. converter gas
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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