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Fuels and Combustion

Fuels and Combustion
Ammonia content in raw coke oven gas is about __________ gm/Nm³.

1
15
50
100

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Fuels and Combustion
Caking coal is desirable for

Burning on travelling grate
All of these
Burning on firebars
Coke making

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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

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

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Fuels and Combustion
Advantages of fluidised bed combustion are

Reduced NOx formation in flue gas
High heat transfer rate
All of these
Lower furnace operating temperature

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Fuels and Combustion
In high temperature carbonisation of coal compared to low temperature carbonisation

Aromatic content of tar is low
H₂ content in the coke oven gas is more
Calorific value of the coke oven gas is lower
Yield of ammonia is less

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Fuels and Combustion
__________ is used as jet engine fuel.

Petrol
Diesel
Kerosene
LPG

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