Fuels and Combustion Presence of phosphorous in metallurgical coal Increases its caking power Reduces its calorific value Badly affects the quality of steel Is not undersirable Increases its caking power Reduces its calorific value Badly affects the quality of steel Is not undersirable ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Traces of tar fog present in the coke oven gas is removed by Electrostatic precipitator Washing with monoethanolamine Cyclone separator Wet packed scrubber Electrostatic precipitator Washing with monoethanolamine Cyclone separator Wet packed scrubber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains Greater percentage of ash More carbon Less volatile matter All of these Greater percentage of ash More carbon Less volatile matter All of these 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 Rate of low temperature oxidation of coal due to bad storage conditions Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When the coal is heated in absence of air, it is called its Gasification Coalification Deoxidation Carbonisation Gasification Coalification Deoxidation Carbonisation ANSWER DOWNLOAD EXAMIANS APP
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