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Fuels and Combustion

Fuels and Combustion
Orsat apparatus

All of these
Gives flue gas analysis on dry basis
Can
Determines N₂ in flue gas indirectly

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Fuels and Combustion
If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be

None of these
Low
High
Very high, if the fuel is of low calorific value

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

Viscosity
Octane number
Calorific value
Specific gravity

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Fuels and Combustion
Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces

Higher amount of both methane and hydrogen
Both A & B
Higher amount of methane
Lower amount of hydrogen

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Fuels and Combustion
Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is

H₂
CH₄
CO₂
N₂

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Fuels and Combustion
With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion

Decreases
Either A or B, depends on other factors
Increases
Remains same

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