Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the Increase in gas pressure All of these Use of pure oxygen for combustion instead of air Increase in temperature (i.e. preheating) Increase in gas pressure All of these Use of pure oxygen for combustion instead of air Increase in temperature (i.e. preheating) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Causes brittleness in steel None of these Decreases the hardness of coke Decreases the abrasion resistance of coke Causes brittleness in steel None of these Decreases the hardness of coke Decreases the abrasion resistance of coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Moisture loss is determined by the The water formed by combustion reaction Both A and B Moisture content of fuel Humidity of combustion air The water formed by combustion reaction Both A and B Moisture content of fuel Humidity of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Ensure efficient burning of coal around the burner Dry the coal Transport the coal to the burner Reduce primary air requirement Ensure efficient burning of coal around the burner Dry the coal Transport the coal to the burner Reduce primary air requirement ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Cupola in foundaries Domestic ovens Iron blast furnace Sinter making Cupola in foundaries Domestic ovens Iron blast furnace Sinter making ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volumetric ratio of Nā to Oā in dry atmospheric air is 0.79 3.76 4.76 0.21 0.79 3.76 4.76 0.21 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS