Fuels and Combustion Ratio of primary air to secondary air increases with increase in the rank of coal, because the High rank coals have higher amount of volatile matter Oxygen content progressively decreases Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases High rank coals have higher amount of volatile matter Oxygen content progressively decreases Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Percentage of nitrogen in blast furnace gas may be around 25 5 80 55 25 5 80 55 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel combustion is never cent per cent efficient due to All of these Dry gas/stack gas loss Incomplete combustion Moisture loss All of these Dry gas/stack gas loss Incomplete combustion Moisture loss ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in Either A or B Either A or C without gain or loss of heat Air Oxygen Either A or B Either A or C without gain or loss of heat Air Oxygen 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. Hydrogen Unsaturated hydrocarbons Methane All of these Hydrogen Unsaturated hydrocarbons Methane All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Abel apparatus is used for those oils, whose flash points are___°F. >280 300-600 >120 >280 300-600 >120 ANSWER DOWNLOAD EXAMIANS APP
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