Fuels and Combustion The optimum percentage of excess air for combustion depends upon the __________ of the fuel. Calorific value Type (solid, liquid or gaseous) Ignition temperature Sulphur content Calorific value Type (solid, liquid or gaseous) Ignition temperature Sulphur content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in Heat losses Long flame Condensation of water vapour from the fuel gas None of these Heat losses Long flame Condensation of water vapour from the fuel gas None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. 1700-1800 900-1000 1400-1500 400-500 1700-1800 900-1000 1400-1500 400-500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Largest constituent of blast furnace gas is CO₂ CO H₂ N₂ CO₂ CO H₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas comprises mainly of CO₂ & N₂ CO & N₂ CO & H₂ CO₂ & H₂ CO₂ & N₂ CO & N₂ CO & H₂ CO₂ & H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volumetric ratio of N₂ to O₂ in dry atmospheric air is 0.79 0.21 3.76 4.76 0.79 0.21 3.76 4.76 ANSWER DOWNLOAD EXAMIANS APP
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