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FUELS AND COMBUSTION

Fuels and Combustion
Narrow coke ovens as compared to wider coke ovens

Produce stronger coke
Produce smaller coke
All of these
Require less time of carbonisation

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Fuels and Combustion
With increases in carbonisation temperature

Methane percentage in the coke oven gas increases
Tar yield increases
Coke even gas yield increases
Hydrogen percentage in the coke oven gas decreases

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Fuels and Combustion
Coke ovens in steel plant are heated by

Both B & C
Mixed gas
Electricity
Coke oven gas

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Fuels and Combustion
Combustion reaction of fuels is a/an __________ reaction.

Endothermic
Exothermic
None of these
Auto catalytic

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

C₂H₆
CH₄
CO
H₂

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