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Fuels and Combustion

Fuels and Combustion
Air/gas ratio for complete combustion will be the highest for

Coke oven gas
Gobar gas
Carburetted water gas
LPG

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Fuels and Combustion
Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm³.

30
3000
300
30, 000

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Fuels and Combustion
High pressure coal gasification is employed in __________ process.

Winkler
None of these
Kopper-Totzek
Lurgi

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Fuels and Combustion
Out of the following fuels, the difference between gross and net calorific value will be minimum in case of

Water gas
Blast furnace gas
Coke oven gas
Natural gas

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Fuels and Combustion
A coal with high ash content

Has higher calorific value
Is not subjected to washing
Has low quantity of mineral matter
Is harder and stronger

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Fuels and Combustion
Dry air required to burn 1 kg of carbon completely may be around __________ kg.

20
11
2
38

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