Fuels and Combustion Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? Ash disposal problem Excessive fly-ash discharge from the stack Erosion of induced draft fan blades High power consumption in its transportation Ash disposal problem Excessive fly-ash discharge from the stack Erosion of induced draft fan blades High power consumption in its transportation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increases in carbonisation temperature Coke even gas yield increases Methane percentage in the coke oven gas increases Tar yield increases Hydrogen percentage in the coke oven gas decreases Coke even gas yield increases Methane percentage in the coke oven gas increases Tar yield increases Hydrogen percentage in the coke oven gas decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Height of coke oven is limited (say maximum upto 7 metres) mainly by the Structural strength of silica bricks Buckling of ram of pusher car at the time of coke pushing Problem in door cleaning Problem of uniform heating along its height Structural strength of silica bricks Buckling of ram of pusher car at the time of coke pushing Problem in door cleaning Problem of uniform heating along its height ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The shift conversion reaction taking place during water gas manufacture is given by C + 2H₂O ⟷ CO₂ + 2H₂ None of these CO + H₂O ⟷ CO₂ + H₂ C + H₂O ⟷ CO + H₂ C + 2H₂O ⟷ CO₂ + 2H₂ None of these CO + H₂O ⟷ CO₂ + H₂ C + H₂O ⟷ CO + H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke ovens in steel plant are heated by Coke oven gas Mixed gas Electricity Both B & C Coke oven gas Mixed gas Electricity Both B & C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion reaction of fuels is a/an __________ reaction. Exothermic None of these Auto catalytic Endothermic Exothermic None of these Auto catalytic Endothermic ANSWER DOWNLOAD EXAMIANS APP
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