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Fuels and Combustion

Fuels and Combustion
Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.

90-110
>120

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Fuels and Combustion
Carbon Content by weight in air dried wood may be about __________ percent.

80
25
50
10

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Fuels and Combustion
Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in

Pyrogallol solution
Ammoniacal cuprous chloride
None of these
KOH

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Fuels and Combustion
Low temperature oxidation of coal is accelerated by the

Storage in compressed piles
Absence of porous or friable particles
Storage in large heaps
All of these

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Fuels and Combustion
If oxygen content in the flue gas rises too high, fuel is being wasted by

Incomplete combustion
None of these
Moisture loss
Dry gas/stack gas loss

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Fuels and Combustion
Calorific value of coke oven gas is around __________ Kcal/Nm³.

4200
7500
2000
900

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