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Fuels and Combustion

Fuels and Combustion
If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as

SO₂
N₂
O₂
CO

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Fuels and Combustion
Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm³.

2500
6500
4000
10000

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Fuels and Combustion
By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of

Benzol
Ammonia
None of these
Tar

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Fuels and Combustion
Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in

Air
Oxygen
Either A or B
Either A or C without gain or loss of heat

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Fuels and Combustion
Which of the following is a rich fuel gas?

None of these
Coal gas from underground gasification of coal
Producer gas
Refinery gases

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Fuels and Combustion
Yield of charcoal in high temperature carbonisation of wood is about __________ percent.

75
25
10
50

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