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Fuels and Combustion

Fuels and Combustion
Main constituents of benzol are

Ammonia & phenol
Anthracene & phenol
Benzene, toluene & xylene
Tar & creosote

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Fuels and Combustion
__________ process is meant for direct hydrogenation of coal to produce liquid fuel.

Bergius
Lurgi
None of these
Fischer-Tropsch

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Fuels and Combustion
Which of the following is coking?

Both A & B
Vitrain
Neither A nor B
Fussain

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Fuels and Combustion
The difference between total carbon and fixed carbon of coal will be minimum in case of

Bituminous coal
High temperature coke (V.M < 0.5%)
Lignite
Anthracite

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Fuels and Combustion
Percentage of carbon monoxide in blast furnace gas may be around

22
8
52
14

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Fuels and Combustion
For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will

Not change
Increase or decrease depending on the fuel type
Increase
Decrease

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