Fuels and Combustion The maximum percentage of CO₂ in a flue gas (from a carbonaceous fuel) can be 29 77 21 79 29 77 21 79 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high ash content Has higher calorific value Is harder and stronger Has low quantity of mineral matter Is not subjected to washing Has higher calorific value Is harder and stronger Has low quantity of mineral matter Is not subjected to washing ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent. 7.5 2.5 10.5 14.5 7.5 2.5 10.5 14.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The weathering index of a coal Is a measure of its size stability, when stored & exposed to weather Is a measure of its caking tendency Is related to its calorific value Gives an idea of the fusion temperature of ash Is a measure of its size stability, when stored & exposed to weather Is a measure of its caking tendency Is related to its calorific value Gives an idea of the fusion temperature of ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon Is less liable to spontaneous combustion on storage Is more difficult to ignite and produces a shorter flame None of these Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage Is more difficult to ignite and produces a shorter flame None of these Requires smaller combustion space and less secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 24 6 18 12 24 6 18 12 ANSWER DOWNLOAD EXAMIANS APP
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