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Fuels and Combustion

Fuels and Combustion
Which of the following is not a binder for coal briquetting?

Bitumen
Molasses
Coal tar
None of these

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Fuels and Combustion
Adiabatic flame temperature of a fuel is dependent on the initial temperature of

Fuel
Neither A nor B
Air
Both A & B

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Fuels and Combustion
The maximum adiabatic flame temperature is attained, when the fuel is burnt with

Less than theoretically required amount of air
Theoretically required amount of air
More than theoretically required amount of air
Theoretically required amount of oxygen

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Fuels and Combustion
Coke oven gas burns with an yellowish flame, because of the presence of

CH₄
NH₃
H₂
CO₂

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Fuels and Combustion
Coke oven gas produced by high temperature carbonisation of coal (as compared to that produced by low temperature carbonisation), has

Neither A nor B
Both A & B
Lower hydrogen content
Higher calorific value

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Fuels and Combustion
Out of the following fuels, the difference between the net and gross calorific value is maximum in case of

Blast furnace gas
Pitch
Bituminous coal
Fuel oil

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