Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Dry and transport the coal Have proper combustion by supplying it around the burner Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Dry and transport the coal Have proper combustion by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel consumption in coke making can be reduced by Preheating, blending and de-ashing the coal Stamped charging of coal All of these Dry quenching of coke Preheating, blending and de-ashing the coal Stamped charging of coal All of these Dry quenching of coke 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. 500 1100 750 950 500 1100 750 950 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Electrical resistivity None of these Density Porosity Electrical resistivity None of these Density Porosity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As time passes, the calorific value of stored coal Decreases Remains unaltered Increases May increase or decrease (depends on the method of storage) Decreases Remains unaltered Increases May increase or decrease (depends on the method of storage) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around __________ percent. 25 and 97 40 and 70 95 and 100 80 and 97 25 and 97 40 and 70 95 and 100 80 and 97 ANSWER DOWNLOAD EXAMIANS APP
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