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Fuels and Combustion

Fuels and Combustion
Coke oven gas constitutes mainly of

H₂ & CO
H₂ & CH₄
H₂ & CO₂
CH₄ & CO

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

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

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Fuels and Combustion
The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always

1
> 1
Unpredicatable

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Fuels and Combustion
With increase in calorific value of fuels, their adiabatic flame temperatures

Remain unchanged
Increase
Decrease
May increase or decrease ; depends on the quantity of products of combustion

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Fuels and Combustion
Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the

Absorption of gases and vapor
Decolourisation of sugar
Solvent recovery from air and gases
Electrode manufacture

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Fuels and Combustion
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be

Data insufficient; can't be predicted
More
Less
Same

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