Fuels and Combustion Higher fuel combustion efficiency can not be achieved by Supplying correct amount of combustion air Reducing sulphur content in the fuel Adopting proper fuel firing technique & fuel preparation Preheating of fuel gases & combustion air Supplying correct amount of combustion air Reducing sulphur content in the fuel Adopting proper fuel firing technique & fuel preparation Preheating of fuel gases & combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always > 1 1 Unpredicatable > 1 1 Unpredicatable ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fussain Is friable, charcoal like substance Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation All of these Is friable, charcoal like substance Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO₂, 20%CO and 10%O₂. The percent excess oxygen used is 20 0 10 12.5 20 0 10 12.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the None of these Incomplete combustion Complete combustion High oxygen in flue gas None of these Incomplete combustion Complete combustion High oxygen in flue gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking coal is desirable for All of these Burning on firebars Burning on travelling grate Coke making All of these Burning on firebars Burning on travelling grate Coke making ANSWER DOWNLOAD EXAMIANS APP
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