Fuels and Combustion Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is CH₄ H₂ N₂ CO₂ CH₄ H₂ N₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Weathering of coal during storage causes Increase in its friability Decrease in its caking capacity All of these Reduction in coal size Increase in its friability Decrease in its caking capacity All of these Reduction in coal size ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of gaseous fuels, deficiency of air Lengthens the flame Does not affect the flame length Increases the flame temperature Tends to shorten the flame Lengthens the flame Does not affect the flame length Increases the flame temperature Tends to shorten the flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas comprises mainly of CO₂ & H₂ CO₂ & N₂ CO & N₂ CO & H₂ CO₂ & H₂ CO₂ & N₂ CO & N₂ CO & H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fixed carbon in coal is defined as That present in volatile matters Hundred minus the percentage of volatile matter, ash and moisture The one which is present in the residue after combustion The total quantity of carbon present in the coal That present in volatile matters Hundred minus the percentage of volatile matter, ash and moisture The one which is present in the residue after combustion The total quantity of carbon present in the coal 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 Requires smaller combustion space and less secondary air None of these Is more difficult to ignite and produces a shorter flame Is less liable to spontaneous combustion on storage Requires smaller combustion space and less secondary air None of these Is more difficult to ignite and produces a shorter flame ANSWER DOWNLOAD EXAMIANS APP
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