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. 10 5 35 20 10 5 35 20 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
Fuels and Combustion Spontaneous combustion of coal on storage results due to All of these Inadequate ventilation Storage in large heaps with small surface to volume ratio Low temperature oxidation All of these Inadequate ventilation Storage in large heaps with small surface to volume ratio Low temperature oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases. O₂ content CO content CO₂ content Dew point O₂ content CO content CO₂ content Dew point ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pick the odd man out. Pitch creosote mixture Briquettes Oil gas Wood Pitch creosote mixture Briquettes Oil gas Wood ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas compared to coke oven gas has Narrower limit of inflammability Lower ignition temperature Lower theoretical flame temperature Higher calorific value Narrower limit of inflammability Lower ignition temperature Lower theoretical flame temperature Higher calorific value ANSWER DOWNLOAD EXAMIANS APP
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