Fuels and Combustion During combustion of gaseous fuels, deficiency of air 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 Does not affect the flame length ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Width of the coke oven towards coke side is slightly more than that on pusher side to Facilitate easy discharging of coke as it swells during carbonisation Increase the output of the coke None of these Facilitate uniform heating of the oven Facilitate easy discharging of coke as it swells during carbonisation Increase the output of the coke None of these Facilitate uniform heating of the oven ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Oxidation Coalification Carbonisation Gasification Oxidation Coalification Carbonisation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature decreases progressively from anthracite to lignite, because Ash content increases Moisture content increases Volatile matter content increases Carbon content decreases Ash content increases Moisture content increases Volatile matter content increases Carbon content decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if It contains large amount of volatile matter It is stored in tall heaps Smaller fines are stored in large quantity All of these It contains large amount of volatile matter It is stored in tall heaps Smaller fines are stored in large quantity All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier. Fixed Fluidised Moving Entrained Fixed Fluidised Moving Entrained ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS