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Fuels and Combustion

Fuels and Combustion
Cannel coal and boghead coal are the examples of

Sapropelic coals
Humic coals
None of these
Liptobiolites

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Fuels and Combustion
By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of

None of these
Ammonia
Benzol
Tar

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Fuels and Combustion
Gobar gas is produced by the __________ of 'gobar' (cow dung).

Oxidation
Dehydration
Hydrolysis
Fermentation

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Fuels and Combustion
Coke compared to the coal from which it has been made, contains

Less volatile matter
More carbon
All of these
Greater percentage of ash

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Fuels and Combustion
Largest constituent of coke oven gas is

CO₂
H₂
N₂
CH₄

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Fuels and Combustion
Octane number of 2, 2, 4 - trimethyl pen-tane is

More than 100
100
In between 0 and 100

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