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Fuels and Combustion

Fuels and Combustion
Fuel combustion is never cent per cent efficient due to

Dry gas/stack gas loss
All of these
Incomplete combustion
Moisture loss

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Fuels and Combustion
Abel apparatus is used for those oils, whose flash points are___°F.

300-600
>280
>120

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

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

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Fuels and Combustion
Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher

Higher C/H ratio
Difference in gross & net calorific value
Sulphur content
Calorific value

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Fuels and Combustion
Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

Caking power
Hydrogen content
Calorific value
Oxygen content

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Fuels and Combustion
Low temperature oxidation of stored coal results in the

Decrease in its caking power & calorific value
Increase in its oxygen content
All of these
Decrease in its carbon & hydrogen content

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MORE MCQ ON Fuels and Combustion

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