Fuels and Combustion Function of secondary air in pulverised coal firing is to Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement Dry the coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher efficiency in the combustion of solid fuel can not be achieved by Keeping the flue gas exhaust temperature very high Adopting efficient-fuel firing technique & equipment Proper fuel preparation Supplying correct quantity of combustion air Keeping the flue gas exhaust temperature very high Adopting efficient-fuel firing technique & equipment Proper fuel preparation Supplying correct quantity of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In flue gas analysis by Orsat's apparatus, oxygen is absorbed by Alkaline pyragllol solution None of these Potassium hydroxide Cuprous chloride Alkaline pyragllol solution None of these Potassium hydroxide Cuprous chloride 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 Problem in door cleaning Buckling of ram of pusher car at the time of coke pushing Problem of uniform heating along its height Structural strength of silica bricks Problem in door cleaning Buckling of ram of pusher car at the time of coke pushing Problem of uniform heating along its height ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of stored coal results in the Increase in its oxygen content All of these Decrease in its carbon & hydrogen content Decrease in its caking power & calorific value Increase in its oxygen content All of these Decrease in its carbon & hydrogen content Decrease in its caking power & calorific value ANSWER DOWNLOAD EXAMIANS APP
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% M40 > 4% and M10 < 80% M40 > 78% and M10 < 10% M40 > 10% and M10 < 78% M40 > 98% and M10 < 2% ANSWER DOWNLOAD EXAMIANS APP
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