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.) More Equal Less More or less ; (depends on the state of fuel.) More Equal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Dry and transport the coal Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Have proper combustion by supplying it around the burner Dry and transport the coal Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Have proper combustion by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following constituents of coal is the most important in the production of coke? Volatiles Moisture Ash Carbon Volatiles Moisture Ash Carbon ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas compared to coke oven gas has Lower theoretical flame temperature Lower ignition temperature Higher calorific value Narrower limit of inflammability Lower theoretical flame temperature Lower ignition temperature Higher calorific value Narrower limit of inflammability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of tar is about __________ Kcal/kg. 5000 16000 12000 8800 5000 16000 12000 8800 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Removal of hydrogen from coke oven gas Decreases its calorific value Is not possible on commerical scale Increases its calorific value Does not alter its calorific value Decreases its calorific value Is not possible on commerical scale Increases its calorific value Does not alter its calorific value ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS