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Fuels and Combustion

Fuels and Combustion
Hard coke is manufactured from

Bituminous coal
Lignite
Semi-anthracite
Anthracite

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

Boy's
None of these
Junker's
Bomb

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

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

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

7.5
10.5
2.5
14.5

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Fuels and Combustion
The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be

42.9
27.6
23
47.3

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Fuels and Combustion
Artificial draught produced by a fan can be controlled by the

Damper
All of these
Speed of the fan
Variation in the pitch of the fan blades

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MORE MCQ ON Fuels and Combustion

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