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Fuels and Combustion

Fuels and Combustion
Which of the following constituents of coal is the most important in the production of coke?

Volatiles
Ash
Carbon
Moisture

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Fuels and Combustion
Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%).

150
5000
3500
1500

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Fuels and Combustion
Fossil fuels mean

Liquid fuels
Those fuels which are found in the crust of earth
Solid fuels
Premature fuels with low calorific value

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Fuels and Combustion
Hard coke is manufactured from

Lignite
Anthracite
Semi-anthracite
Bituminous coal

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Fuels and Combustion
Pick the odd man out.

Briquettes
Oil gas
Wood
Pitch creosote mixture

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Fuels and Combustion
Cannel coal and boghead coal are the examples of

None of these
Liptobiolites
Humic coals
Sapropelic coals

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