Fuels and Combustion Overfire burning in a furnace is a phenomenon characterised by the Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air Supply of excess air None of these Supply of excess fuel Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air Supply of excess air None of these Supply of excess fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A fuel with high heat release rate will Have high adiabatic flame temperature None of these Have high calorific value Require smaller combustion chamber Have high adiabatic flame temperature None of these Have high calorific value Require smaller combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of both the solid & liquid fuels can be determined by using __________ calorimeter. None of these Junker's Boy's Bomb None of these Junker's Boy's Bomb ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ? Bag filter Multicyclones Wet scrubber Hydrocyclones Bag filter Multicyclones Wet scrubber Hydrocyclones ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases Increases Decreases May increase or decrease ; depends on the type of fuel Remains same Increases Decreases May increase or decrease ; depends on the type of fuel Remains same ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Hard semi-coke starts shrinking at 600°C All tar is evolved at < 600°C All of these Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All tar is evolved at < 600°C All of these Evolution of H₂ and formation of methane and aromatics occur at > 700°C ANSWER DOWNLOAD EXAMIANS APP
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