Fuels and Combustion A coal containing high amount of volatile matter will have Low adiabatic flame temperature Low ignition temperature Very little ash content High fusion point of its ash Low adiabatic flame temperature Low ignition temperature Very little ash content High fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High excess air in combustion of fuels results in Smoky flame None of these Increased fuel consumption Incomplete combustion Smoky flame None of these Increased fuel consumption Incomplete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? None of these It achieves higher fuel combustion efficiency It can not burn low grade coal Less heat transfer surface area is required in boilers None of these It achieves higher fuel combustion efficiency It can not burn low grade coal Less heat transfer surface area is required in boilers ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) All of these Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Efficient burning of anthracite coal requires Low preheat of air High excess air Fine grinding All of these Low preheat of air High excess air Fine grinding All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Dry the coal Reduce primary air requirement Ensure efficient burning of coal around the burner Transport the coal to the burner Dry the coal Reduce primary air requirement Ensure efficient burning of coal around the burner Transport the coal to the burner ANSWER DOWNLOAD EXAMIANS APP
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