Fuels and Combustion Which of the following would require maximum amount of % excess air for complete combustion? Pulverised coal Lump coal (fixed on chain grate) Coke oven gas Furnace oil Pulverised coal Lump coal (fixed on chain grate) Coke oven gas Furnace oil 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 ? Multicyclones Bag filter Wet scrubber Hydrocyclones Multicyclones Bag filter Wet scrubber Hydrocyclones ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms. 1 to 2 3 to 4 5 to 15 20 to 40 1 to 2 3 to 4 5 to 15 20 to 40 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by Oxygen Oxygen enriched air None of these Air Oxygen Oxygen enriched air None of these Air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Advantages of fluidised bed combustion are High heat transfer rate Lower furnace operating temperature Reduced NOx formation in flue gas All of these High heat transfer rate Lower furnace operating temperature Reduced NOx formation in flue gas All of these 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. Methane Unsaturated hydrocarbons Hydrogen All of these Methane Unsaturated hydrocarbons Hydrogen All of these ANSWER DOWNLOAD EXAMIANS APP
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