Fuels and Combustion Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ? Bag filter Hydrocyclones Multicyclones Wet scrubber Bag filter Hydrocyclones Multicyclones Wet scrubber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen in coal All of these Comes from protein in parent vegetable matter Is recovered as ammonia during its carbonisation Is present upto 1-2% All of these Comes from protein in parent vegetable matter Is recovered as ammonia during its carbonisation Is present upto 1-2% ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature is attained, when the fuel is burnt with Theoretically required amount of oxygen More than theoretically required amount of air Less than theoretically required amount of air Theoretically required amount of air Theoretically required amount of oxygen More than theoretically required amount of air Less than theoretically required amount of air Theoretically required amount of air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Mineral matter Adhering impurities Both B and C Inherent impurities Mineral matter Adhering impurities Both B and C Inherent impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ionisation potential applied across the electrodes of electrostatic tar precipitator is around 60 KV DC 230 V AC 230 V DC 60 KV AC 60 KV DC 230 V AC 230 V DC 60 KV AC ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high Percentage of oxygen in flue gases All of these Fuel consumption for the same heat load Stack gas temperature Percentage of oxygen in flue gases All of these Fuel consumption for the same heat load Stack gas temperature ANSWER DOWNLOAD EXAMIANS APP
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