Fuels and Combustion Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent. 20 40 4 96 20 40 4 96 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Transport the coal to the burner Ensure efficient burning of coal around the burner Dry the coal Reduce primary air requirement Transport the coal to the burner Ensure efficient burning of coal around the burner Dry the coal Reduce primary air requirement ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas is produced by the __________ of cown dung. Fermentation Oxidation None of these Hydrogenation Fermentation Oxidation None of these Hydrogenation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Reduces its calorific value Increases its caking power Badly affects the quality of steel Is not undersirable Reduces its calorific value Increases its caking power Badly affects the quality of steel Is not undersirable ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high All of these Fuel consumption for the same heat load Stack gas temperature Percentage of oxygen in flue gases All of these Fuel consumption for the same heat load Stack gas temperature Percentage of oxygen in flue gases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be Same Data insufficient; can't be predicted More Less Same Data insufficient; can't be predicted More Less ANSWER DOWNLOAD EXAMIANS APP
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