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Fuels and Combustion

Fuels and Combustion
Adiabatic flame temperature of a fuel is dependent on the initial temperature of

Air
Both A & B
Fuel
Neither A nor B

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Fuels and Combustion
Gray King Assay and Swelling Index of a coal is a measure of its

Resistance to impact breakage
Swelling characteristics
Abradability
Agglutinating properties

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Fuels and Combustion
The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be

42.9
47.3
23
27.6

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Fuels and Combustion
In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing

CO
O₂
H₂O
CO₂

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Fuels and Combustion
Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the

Steel ladle drying
Mixing with blast furnace gas
Hot scarfing of steel slabs
Coke oven battery heating

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Fuels and Combustion
Calorific value of of blast furnace gas is around __________ KCal/Nm³.

850
6500
1800
4200

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