Fuels and Combustion A gaseous fuel in order to develop luminousity on burning, must contain Hydrocarbons Hydrogen Oxygen Carbon monoxide Hydrocarbons Hydrogen Oxygen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Natural draught produced by a chimney depends upon the Both A & B Neither A nor B Height of the chimney Density of the chimney gases Both A & B Neither A nor B Height of the chimney Density of the chimney gases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value is the highest out of the following for Coke oven gas Water gas Blast furnace gas Producer gas Coke oven gas Water gas Blast furnace gas Producer gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon Is less liable to spontaneous combustion on storage None of these Is more difficult to ignite and produces a shorter flame Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage None of these Is more difficult to ignite and produces a shorter flame Requires smaller combustion space and less secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Does not vary with increase in surface area Is more for low volatile coal compared to high volatile coal Is accelerated by storage in large heaps with small surface to volume ratio Decreases with increase in surface area Does not vary with increase in surface area Is more for low volatile coal compared to high volatile coal Is accelerated by storage in large heaps with small surface to volume ratio Decreases with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Height of coke oven is limited (say maximum upto 7 metres) mainly by the Structural strength of silica bricks Buckling of ram of pusher car at the time of coke pushing Problem of uniform heating along its height Problem in door cleaning Structural strength of silica bricks Buckling of ram of pusher car at the time of coke pushing Problem of uniform heating along its height Problem in door cleaning ANSWER DOWNLOAD EXAMIANS APP
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