Fuels and Combustion Natural draught produced by a chimney depends upon the Density of the chimney gases Height of the chimney Both A & B Neither A nor B Density of the chimney gases Height of the chimney Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. All of these Hydrogen Methane Unsaturated hydrocarbons All of these Hydrogen Methane Unsaturated hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuels is generally not used in thermal power plant boiler firing? F. gas, coke oven gas and L.D. converter gas Furnace oil, light diesel oil and tar/PCM Pulverised coking coal Coal middling from washeries F. gas, coke oven gas and L.D. converter gas Furnace oil, light diesel oil and tar/PCM Pulverised coking coal Coal middling from washeries ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In flue gas analysis by Orsat's apparatus, carbon dioxide is absorbed by Dilute potassium carbonate Alkaline pyragllol solution Potassium hydroxide Cuporus chloride Dilute potassium carbonate Alkaline pyragllol solution Potassium hydroxide Cuporus chloride ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Young Neither A nor B Mature Both A & B Young Neither A nor B Mature Both A & B 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