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Fuels and Combustion

Fuels and Combustion
Coke oven gas constitutes mainly of

H₂ & CH₄
CH₄ & CO
H₂ & CO
H₂ & CO₂

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Fuels and Combustion
Light oil whose major component is benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C.

200-300
80-170
250-270
280-300

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Fuels and Combustion
In low temperature carbonisation of coal, the

Yield of coke oven gas is 290 Nm³ /ton dry coal
Temperature maintained is 700°C
Yield of tar is about 3% of dry coal
Volatile matter in coke is zero

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Fuels and Combustion
Moisture loss is determined by the

Both A and B
Humidity of combustion air
The water formed by combustion reaction
Moisture content of fuel

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Fuels and Combustion
The function of secondary combustion air is to

Completely burn the volatile matter
Burn the lumpy coal
None of these
Pneumatically convey the pulverised coal

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Fuels and Combustion
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be

Same
Data insufficient; can't be predicted
Less
More

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