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Fuels and Combustion

Fuels and Combustion
Which of the following coke has the least percentage of ash?

Foundary coke
Beehive coke
Metallurgical coke
Petroleum coke

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Fuels and Combustion
In flue gas analysis by Orsat's apparatus, carbon dioxide is absorbed by

Dilute potassium carbonate
Potassium hydroxide
Alkaline pyragllol solution
Cuporus chloride

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Fuels and Combustion
Weathering of coal during storage causes

Decrease in its caking capacity
All of these
Reduction in coal size
Increase in its friability

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Fuels and Combustion
Gobar gas constitutes mainly of

CH₄ & N₂
CO & CO₂
CO & N₂
CH₄ & CO₂

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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
Benzol
Tar
Ammonia

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Fuels and Combustion
Main constituents of benzol are

Tar & creosote
Anthracene & phenol
Benzene, toluene & xylene
Ammonia & phenol

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