Fuels and Combustion The maximum adiabatic flame temperature is attained, when the fuel is burnt with More than theoretically required amount of air Less than theoretically required amount of air Theoretically required amount of air Theoretically required amount of oxygen More than theoretically required amount of air Less than theoretically required amount of air Theoretically required amount of air Theoretically required amount of oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg. 8000 4000 15000 1000 8000 4000 15000 1000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Steam is intermittently admitted into the fuel bed during the production of producer gas to Increase the combustion rate Convert CO to CO₂ Increase the gas production rate Minimise the chances of clinker formation Increase the combustion rate Convert CO to CO₂ Increase the gas production rate Minimise the chances of clinker formation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of __________ the flame temperature. Either the fuel or the air does not affect Combustion air decreases The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Either the fuel or the air does not affect Combustion air decreases The gaseous fuel before combustion decreases Either the fuel or the air or both, increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen percentage (by weight) in atmospheric air is 29 19 21 23 29 19 21 23 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS