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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 2
11.
Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm3 .
30
300
3000
30, 000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Coking coals are invariably
lignites
bituminous coals
semi-anthracites
anthracites
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which of the following accounts for maximum energy loss in a boiler ?
Flue gases.
Ash content in the fuel.
Incomplete combustion.
Unburnt carbon in flue gases.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
'Fuel' can be defined as a substance which produces heat by
combustion.
nuclear fission.
nuclear fusion.
all (a), (b) & (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Washing of coal
reduces its sulphur and ash content.
controls its ash fusibility and increases its calorific value.
improves its coking properties.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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