Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? It can not burn low grade coal Less heat transfer surface area is required in boilers It achieves higher fuel combustion efficiency None of these It can not burn low grade coal Less heat transfer surface area is required in boilers It achieves higher fuel combustion efficiency None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? Ash disposal problem High power consumption in its transportation Erosion of induced draft fan blades Excessive fly-ash discharge from the stack Ash disposal problem High power consumption in its transportation Erosion of induced draft fan blades Excessive fly-ash discharge from the stack ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas constitutes mainly of CH₄ & CO₂ CO & N₂ CO & CO₂ CH₄ & N₂ CH₄ & CO₂ CO & N₂ CO & CO₂ CH₄ & N₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion reaction of fuels is a/an __________ reaction. Exothermic Auto catalytic Endothermic None of these Exothermic Auto catalytic Endothermic None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal All of these Calorific value of coke oven gas is less Coke oven gas yield is more Tar yield is less but free carbon in tar is more All of these Calorific value of coke oven gas is less Coke oven gas yield is more Tar yield is less but free carbon in tar is more ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of gaseous fuels, deficiency of air Does not affect the flame length Increases the flame temperature Lengthens the flame Tends to shorten the flame Does not affect the flame length Increases the flame temperature Lengthens the flame Tends to shorten the flame ANSWER DOWNLOAD EXAMIANS APP
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