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Fuels and Combustion

Fuels and Combustion
In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing

O₂
CO₂
H₂O
CO

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Fuels and Combustion
Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier.

Entrained
Fluidised
Fixed
Moving

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Fuels and Combustion
Higher percentage of ash in coal meant for the production of metallurgical grade coke

Decreases the abrasion resistance of coke
None of these
Causes brittleness in steel
Decreases the hardness of coke

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Fuels and Combustion
Nitrogen in coal

Is present upto 1-2%
All of these
Is recovered as ammonia during its carbonisation
Comes from protein in parent vegetable matter

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Fuels and Combustion
Air/gas ratio for complete combustion will be the highest for

Coke oven gas
Gobar gas
LPG
Carburetted water gas

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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
KOH
Ammoniacal cuprous chloride
None of these

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