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Fuels and Combustion

Fuels and Combustion
Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than __________ °C is liable to form clinker.

1100
1350
1400
1250

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Fuels and Combustion
Air/gas ratio for complete combustion will be the highest for

Gobar gas
LPG
Carburetted water gas
Coke oven gas

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

52
8
14
22

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Fuels and Combustion
The maximum percentage of CO₂ in a flue gas (from a carbonaceous fuel) can be

29
79
21
77

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Fuels and Combustion
Micum Index of a coke is a measure of its

Bulk density
Hardness & strength
Porosity
Reactivity

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Fuels and Combustion
The cooling medium used in dry quenching of coke is

Phenolic water
Air
Nitrogen
Carbon dioxide

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