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Fuels and Combustion

Fuels and Combustion
C/H ratio is the maximum in case of

Naphtha
Natural gas
Furnace oil
Coal

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Fuels and Combustion
During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the

High oxygen in flue gas
Complete combustion
None of these
Incomplete combustion

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Fuels and Combustion
Gross and net calorific value of a fuel will be the same

If its hydrogen/hydrogen compound content is zero
Under no circumstances
If its ash content is zero
Ifits carbon content is very low

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Fuels and Combustion
Main constituent of the gas produced from a gobar gas plant is

CH₄
H₂
CO₂
CO

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Fuels and Combustion
Power alcohol as compared to straight run gasoline has lower

Calorific value
Viscosity
Octane number
Specific gravity

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Fuels and Combustion
__________ present in coal is not determined in its ultimate analysis.

Hydrogen
Nitrogen
Total carbon
Fixed carbon

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