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Fuels and Combustion

Fuels and Combustion
Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain

Both B & C
CO₂
H₂O
CO

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Fuels and Combustion
Which of the following is the most poisonous gas?

L.D. converter gas
Coke oven gas
Producer gas
Blast furnace gas

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Fuels and Combustion
Which of the following is not applicable to fluidised bed combustion of coal?

It achieves higher fuel combustion efficiency
None of these
Less heat transfer surface area is required in boilers
It can not burn low grade coal

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Fuels and Combustion
Most of the coking coals are

None of these
Lignite
Anthracite
Bituminous

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Fuels and Combustion
Gray King Assay and Swelling Index of a coal is a measure of its

Abradability
Swelling characteristics
Resistance to impact breakage
Agglutinating properties

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Fuels and Combustion
Which of the following has the highest flame speed?

H₂
CO
CH₄
C₂H₆

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