Fuels and Combustion Coals used for the generation of producer gas should have Low fusion point of ash High caking index High volatile matter content Very low ash content (8-10%) Low fusion point of ash High caking index High volatile matter content Very low ash content (8-10%) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas containing least amount of tar is produced by the Partial combustion of coal Partial combustion of large size (< 50 mm) coke High pressure gasification of coal (e.g. in Lurgi gasifier) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of coal Partial combustion of large size (< 50 mm) coke High pressure gasification of coal (e.g. in Lurgi gasifier) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of Ammonia None of these Tar Benzol Ammonia None of these Tar Benzol ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Friability & oxygen content Yield of carbonised products Calorific value Caking index Friability & oxygen content Yield of carbonised products Calorific value Caking index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas constitutes mainly of CO & N₂ CH₄ & CO₂ CH₄ & N₂ CO & CO₂ CO & N₂ CH₄ & CO₂ CH₄ & N₂ CO & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will Increase Decrease Increase or decrease depending on the fuel type Not change Increase Decrease Increase or decrease depending on the fuel type Not change ANSWER DOWNLOAD EXAMIANS APP
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