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 ? Hydrocyclones Bag filter Wet scrubber Multicyclones Hydrocyclones Bag filter Wet scrubber Multicyclones ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal compared to the lumpy coal Provides better control of furnace temperature All of these Facilitates combustion with lower excess air Provides higher thermal efficiency & flame temperature Provides better control of furnace temperature All of these Facilitates combustion with lower excess air Provides higher thermal efficiency & flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high volatile matter content will Give less yield of tar and gas on carbonisation Burn with a small non-smoky flame None of these Have a very high calorific value Give less yield of tar and gas on carbonisation Burn with a small non-smoky flame None of these Have a very high calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following oil gasification processes is non-catalytic? Onia-Gegi process Steam reforming of naphtha Semet-Solvay process Segas process Onia-Gegi process Steam reforming of naphtha Semet-Solvay process Segas process ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of coal charge for the coke ovens reduces the Time of carbonisation Yield of gas and tar All of these Fuel consumption in coking Time of carbonisation Yield of gas and tar All of these Fuel consumption in coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains Greater percentage of ash Less volatile matter All of these More carbon Greater percentage of ash Less volatile matter All of these More carbon ANSWER DOWNLOAD EXAMIANS APP
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