Fuels and Combustion Blast furnace gas constitutes mainly of N₂ & H₂ N₂ & CH₄ N₂ & CO CH₄ & CO₂ N₂ & H₂ N₂ & CH₄ N₂ & CO CH₄ & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions 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 Does not vary with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The fuel ratio of a coal is Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Both A and B Neither A nor B Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised fuel Suppresses the discharge of fine dust and grit into atmosphere All of these In a metallurgical furnace does not contaminate the product in the furnace by ash from fuel Requires larger combustion chamber than rich gaseous fuel Suppresses the discharge of fine dust and grit into atmosphere All of these In a metallurgical furnace does not contaminate the product in the furnace by ash from fuel Requires larger combustion chamber than rich gaseous fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always > 1 Unpredicatable 1 > 1 Unpredicatable 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in a commercial high temperature coal carbonisation plant is about __________ hours. 18 28 36 6 18 28 36 6 ANSWER DOWNLOAD EXAMIANS APP
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