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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 7
46.
Which of the following is not applicable to fluidised bed combustion of coal ?
It can not burn low grade coal.
It achieves higher fuel combustion efficiency.
Less heat transfer surface area is required in boilers.
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Coal containing large quantity of __________ are difficult to wash.
ash
inherent mineral matter
free impurities
volatile matter
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Which of the following is not a micro component present in coal ?
Micrinite
Clarain
Fusinite
Liptinite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter.
bomb
Boy's
Junkar's
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
A coal containing high amount of volatile matter will have
low ignition temperature
very little ash content
high fusion point of its ash
low adiabatic flame temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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