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Fuels and Combustion

Fuels and Combustion
Which of the following is a poisonous fuel gas?

Blast furnace gas
None of these
Natural gas
Coke oven gas

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

Endothermic
Exothermic
Auto catalytic
None of these

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Fuels and Combustion
Calorific value of of blast furnace gas is around __________ KCal/Nm³.

6500
1800
4200
850

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Fuels and Combustion
Blast furnace gas burns with a bluish flame, because of the presence of

S
CH₄
CO
CO₂

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Fuels and Combustion
Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in

Oxygen
Either A or C without gain or loss of heat
Either A or B
Air

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Fuels and Combustion
Largest constituent of blast furnace gas is

CO₂
H₂
N₂
CO

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