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Width of the coke oven towards coke side is slightly more than that on pusher side to
A Facilitate easy discharging of coke as it swells during carbonisation
B Facilitate uniform heating of the oven
C Increase the output of the coke
D None of these
Hydrogen content of coke oven gas is __________ percent.
A 4
B 22
C 58
D 84
Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at
A Rourkela (under SAIL)
B Barauni (under HFC)
C Nangal (under NFL)
D Talchar (under FCI)
Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
A Adsorption on palladium
B Cryogenic operations (low temperature cooling)
C Absorption (using ethanolamine or pyragalloll solution)
D None of these
Percentage of hydrogen in coke oven gas may be around
A 10
B 25
C 45
D 60
Blast furnace gas compared to coke oven gas has
A Lower ignition temperature
B Narrower limit of inflammability
C Higher calorific value
D Lower theoretical flame temperature
Coke oven gas is a better fuel than blast furnace gas, because of its higher
A Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity)
B Adiabatic flame temperature
C Heat release rate (thus requiring smaller combustion chamber)
D All of the above
Coke oven gas compared to blast furnace gas is
A More explosive and inflammable
B Less poisonous
C Lighter
D All of the above
Naphthalene is removed from coke oven gas by
A Adsorbing on palladium
B Absorbing in ethanolamine
C Scrubbing with wash oil
D Passing it through electrostatic precipitator
Flushing liquor used for cooling coke oven gas constitutes of
A Ammoniacal liquor
B K2CO3 solution
C Dilute H2SO4
D Dilute HCl

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