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Fuels and Combustion

Fuels and Combustion
Percentage of nitrogen in blast furnace gas may be around

80
25
5
55

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Fuels and Combustion
Moisture loss is determined by the

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

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Fuels and Combustion
Volatile matter content of metallurgical coke may be around __________ percent.

1-2
10-15
22-26
30-33

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Fuels and Combustion
Yield of coke oven gas in low temperature carbonisation of coal is about __________ Nm³ /ton of dry coal.

160
750
60
500

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Fuels and Combustion
In flue gas analysis by Orsat's apparatus, carbon dioxide is absorbed by

Alkaline pyragllol solution
Potassium hydroxide
Cuporus chloride
Dilute potassium carbonate

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Fuels and Combustion
Supply of excess air for complete combustion of fuel is necessitated to facilitate

Attainment of chemical equilibrium
Its thorough mixing with air
None of these
Attainment of high temperature

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