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Fuels and Combustion

Fuels and Combustion
The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.

Same as
Lower than
Not related to
Higher than

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Fuels and Combustion
Naphthalene is removed from coke oven gas by

Absorbing in vetro-coke solution
Scrubbing with wash oil (a petroleum product)
Adsorbing on bog iron bed
None of these

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Fuels and Combustion
Number of macrocomponents present in coal according to Stopes are

Six
Five
Two
Four

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

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

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Fuels and Combustion
KOH solution used in orsat apparatus absorbs

CO₂
Neither A nor B
SO₂
Both A & B

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Fuels and Combustion
Calorific value of of blast furnace gas is around __________ KCal/Nm³.

4200
850
6500
1800

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