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Fuels and Combustion

Fuels and Combustion
The gasification reaction represented by, C + H₂O = CO + H₂, is

Catalytic
Autocatalytic
Endothermic
Exothermic

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Fuels and Combustion
Calorific value of tar is about __________ Kcal/kg.

12000
16000
8800
5000

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Fuels and Combustion
For every 10% increase in the excess air; the fuel consumption increases by __________ percent.

5
10
0.1
2

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Fuels and Combustion
The sequence of absorption in flue gas analysis by Orsat's apparatus is respectively

CO, O₂, CO₂
O₂, CO₂, CO
CO₂, O₂, CO
CO₂, CO, O₂

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Fuels and Combustion
Presence of nitrogen in combustion air does not reduce the

Any of the above
Flame temperature
Flue gas temperature
Amount of heat liberated

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Fuels and Combustion
Dry air required to burn 1 kg of carbon completely may be around __________ kg.

38
2
11
20

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