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 10 12.5 20 0 10 12.5 20 0 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Both B and C Adhering impurities Mineral matter Inherent impurities Both B and C Adhering impurities Mineral matter Inherent impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Steam is intermittently admitted into the fuel bed during the production of producer gas to Increase the gas production rate Increase the combustion rate Minimise the chances of clinker formation Convert CO to CO₂ Increase the gas production rate Increase the combustion rate Minimise the chances of clinker formation Convert CO to CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 20 35 5 10 20 35 5 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ of the coal is the basis for Seylor's coal classification. Proximate analysis Calorific value Caking index Ultimate analysis Proximate analysis Calorific value Caking index Ultimate analysis ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air as compared to that in pure oxygen is Same Either lower or higher, depends on the type of fuel Much lower Much higher Same Either lower or higher, depends on the type of fuel Much lower Much higher ANSWER DOWNLOAD EXAMIANS APP
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