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Fuels and Combustion

Fuels and Combustion
Blast furnace gas is a very poisonous gas because of its predominantly high __________ content.

H₂O
CO
CO₂
CH₄

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

5000
3500
1500
150

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Fuels and Combustion
Low temperature oxidation of stored coal results in the

Decrease in its carbon & hydrogen content
Increase in its oxygen content
All of these
Decrease in its caking power & calorific value

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Fuels and Combustion
Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.

20
5
10
35

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Fuels and Combustion
'Wobbe index' is a characteristic of

Gaseous fuels
Liquid fuels
Fat coals
Solid fuels

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

Sapropelic coals
None of these
Liptobiolites
Humic coals

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MORE MCQ ON Fuels and Combustion

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