Fuels and Combustion Coking coals are invariably Semi-anthracites Bituminous coals Lignites Anthracites Semi-anthracites Bituminous coals Lignites Anthracites ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high Stack gas temperature Fuel consumption for the same heat load Percentage of oxygen in flue gases All of these Stack gas temperature Fuel consumption for the same heat load Percentage of oxygen in flue gases All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of coal on grate, clinker formation is increased by the Use of preheated primary air Low fusion point of ash (< 1100° C) All of these Use of thick fire bed Use of preheated primary air Low fusion point of ash (< 1100° C) All of these Use of thick fire bed 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? High power consumption in its transportation Excessive fly-ash discharge from the stack Erosion of induced draft fan blades Ash disposal problem High power consumption in its transportation Excessive fly-ash discharge from the stack Erosion of induced draft fan blades Ash disposal problem ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen required for theoretically complete combustion of 1 Nm³ methane is __________ Nm³. 4 1 2 6 4 1 2 6 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Width of the coke oven towards coke side is slightly more than that on pusher side to None of these Facilitate easy discharging of coke as it swells during carbonisation Increase the output of the coke Facilitate uniform heating of the oven None of these Facilitate easy discharging of coke as it swells during carbonisation Increase the output of the coke Facilitate uniform heating of the oven ANSWER DOWNLOAD EXAMIANS APP
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