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Fuels and Combustion

Fuels and Combustion
Incomplete combustion of a fuel is characterised by the high __________ in the flue gas.

Temperature
Oxygen
Smoke
Carbon monoxide

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Fuels and Combustion
Preheating of a gaseous fuel results in increased

Flame temperature
Ignition temperature
Flame length
Quantity of flue gas

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Fuels and Combustion
Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced.

Ash content
Moisture content
Volatile matter
Colour

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Fuels and Combustion
Calorific value of furnace oil is about __________ Kcal/kg.

10000
5000
15000
20000

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Fuels and Combustion
Abrasion index of blast furnace coke should be around __________ percent.

20
80
35
55

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Fuels and Combustion
L.D. converter gas (produced in steel plant) comprises mainly of

CO & O₂
CO (upto 65%) & CO₂
CO₂ & O₂
CO₂ & H₂

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