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Fuels and Combustion

Fuels and Combustion
Which of the following is not a by-product fuel?

Refinery gas
Blast furnace gas
Petrol
Pitch

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Fuels and Combustion
Calorific value as determined by bomb calorimeter is the

Higher calorific value at constant volume
Lower calorific value at constant pressure
Gross calorific value at constant pressure
Net calorific value at constant volume

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Fuels and Combustion
Overfire burning in a furnace is a phenomenon characterised by the

Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air
Supply of excess fuel
Supply of excess air
None of these

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Fuels and Combustion
'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent.

14.5
7.5
10.5
2.5

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Fuels and Combustion
Micum Index of a coke is a measure of its

Reactivity
Hardness & strength
Porosity
Bulk density

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Fuels and Combustion
Calorific value of both the solid & liquid fuels can be determined by using __________ calorimeter.

Bomb
Boy's
None of these
Junker's

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