Fuels and Combustion Function of secondary air in pulverised coal firing is to Dry the coal Ensure efficient burning of coal around the burner Reduce primary air requirement Transport the coal to the burner Dry the coal Ensure efficient burning of coal around the burner Reduce primary air requirement Transport the coal to the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for Gobar gas LPG Carburetted water gas Coke oven gas Gobar gas LPG Carburetted water gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 750 1100 950 500 750 1100 950 500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Undercharging of coal in the by-product coke ovens results in Increase in its throughput Decrease in the c.v. of coke oven gas No change in the c.v. of coke oven gas Increase in the c.v. of coke oven gas Increase in its throughput Decrease in the c.v. of coke oven gas No change in the c.v. of coke oven gas Increase in the c.v. of coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature is attained, when the fuel is burnt with Theoretically required amount of oxygen Theoretically required amount of air Less than theoretically required amount of air More than theoretically required amount of air Theoretically required amount of oxygen Theoretically required amount of air Less than theoretically required amount of air More than theoretically required amount of air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of BaSO₄ & NaCl MgCO₃ & NaCl MgO & Na₂CO₃ MgSO₄ & BaCl₂ BaSO₄ & NaCl MgCO₃ & NaCl MgO & Na₂CO₃ MgSO₄ & BaCl₂ ANSWER DOWNLOAD EXAMIANS APP