Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 1100 500 950 750 1100 500 950 750 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal containing large quantity of __________ are difficult to wash. Free impurities Ash Volatile matter Inherent mineral matter Free impurities Ash Volatile matter Inherent mineral matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Increase the calorific value of the fuel Increase the adiabatic flame temperature Reduce its requirement for effecting the complete combustion Complete the combustion of fuel Increase the calorific value of the fuel Increase the adiabatic flame temperature Reduce its requirement for effecting the complete combustion Complete the combustion of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having higher volatile matter content will necessarily have lower Calorific value Ash fusion temperature Caking index Ignition temperature Calorific value Ash fusion temperature Caking index Ignition temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ionisation potential applied across the electrodes of electrostatic tar precipitator is around 230 V AC 60 KV DC 230 V DC 60 KV AC 230 V AC 60 KV DC 230 V DC 60 KV AC ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good quality coal should have High ash content High sulphur None of these Low fusion point of ash High ash content High sulphur None of these Low fusion point of ash ANSWER DOWNLOAD EXAMIANS APP
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