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Fuels and Combustion

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

12000
5000
8800
16000

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Fuels and Combustion
Mott and Wheeler test is conducted on coke to find its

Reactivity with O₂
Abradability
Phosphorus content
Volatile matter content

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Fuels and Combustion
The reaction, C + CO₂ ⟷ 2CO, taking place during coal gasification is called the __________ reaction. n.

Reduction
Boudouard
Neumann reversal
Shift conversion

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Fuels and Combustion
Desirable "Micum Index" values of metal-lurical coke are

M40 > 98% and M10 < 2%
M40 > 78% and M10 < 10%
M40 > 10% and M10 < 78%
M40 > 4% and M10 < 80%

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Fuels and Combustion
Combustion reaction of fuels is a/an __________ reaction.

Auto catalytic
Exothermic
Endothermic
None of these

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Fuels and Combustion
In flue gas analysis by Orsat's apparatus, carbon monoxide is absorbed by

Potassium hydroxide
Alkaline pyrogallol solution
None of these
Cuprous chloride

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