Fuels and Combustion Which of the following accounts for maximum energy loss in a boiler? Unburnt carbon in flue gases Flue gases Incomplete combustion Ash content in the fuel Unburnt carbon in flue gases Flue gases Incomplete combustion Ash content in the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Friability & oxygen content Calorific value Yield of carbonised products Caking index Friability & oxygen content Calorific value Yield of carbonised products Caking index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Undercharging of coal in the by-product coke ovens results in Increase in its throughput Increase in the c.v. of coke oven gas Decrease in the c.v. of coke oven gas No change in the c.v. of coke oven gas Increase in its throughput Increase in the c.v. of coke oven gas Decrease in the c.v. of coke oven gas No change in the c.v. of coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Reduce primary air requirement Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray-King Assay and Roga Index of coal is a measure of its Grindability Caking and swelling properties Abradability Weathering properties Grindability Caking and swelling properties Abradability Weathering properties ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The pyragallol solution used in orsat apparatus can absorb Both O₂ and CO All of these Both O₂ and CO₂ Only O₂ Both O₂ and CO All of these Both O₂ and CO₂ Only O₂ ANSWER DOWNLOAD EXAMIANS APP
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