Fuels and Combustion The internal energy of the combustion products is __________ compared to that of reactants. Less More or less ; (depends on the state of fuel.) Equal More Less More or less ; (depends on the state of fuel.) Equal More ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is pulverised before burning in large capacity boiler furnaces mainly to Ensure its complete combustion Provide trouble free operation Facilitate easy ash removal Enhance its calorific value Ensure its complete combustion Provide trouble free operation Facilitate easy ash removal Enhance its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The heat of combustion of a fuel Is always negative Can't be known without calculating it Is equal to the heat of formation Is always positive Is always negative Can't be known without calculating it Is equal to the heat of formation Is always positive 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 Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage None of these Is more difficult to ignite and produces a shorter flame Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage None of these Is more difficult to ignite and produces a shorter flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.8 A M = 1.1 A M = 0.5 A M = A M = 1.8 A M = 1.1 A M = 0.5 A M = A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Iron blast furnace Sinter making Domestic ovens Cupola in foundaries Iron blast furnace Sinter making Domestic ovens Cupola in foundaries ANSWER DOWNLOAD EXAMIANS APP
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