Fuels and Combustion Function of secondary air in pulverised coal firing is to Dry the coal Reduce primary air requirement Ensure efficient burning of coal around the burner Transport the coal to the burner Dry the coal Reduce primary air requirement Ensure efficient burning of coal around the burner Transport the coal to the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent. 15 to 25 55 to 75 75 35 to 45 15 to 25 55 to 75 75 35 to 45 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross and net calorific value of a fuel will be the same Ifits carbon content is very low If its hydrogen/hydrogen compound content is zero If its ash content is zero Under no circumstances Ifits carbon content is very low If its hydrogen/hydrogen compound content is zero If its ash content is zero Under no circumstances ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The hottest part of the flame lies in its____zone. Luminous Yellow Non-luminous Unburnt gases Luminous Yellow Non-luminous Unburnt gases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature carbonisation of coal produces No by-products Metallurgical coke Very low calorific value coke oven gas Soft coke No by-products Metallurgical coke Very low calorific value coke oven gas Soft coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F. 90-110 >120 90-110 >120 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS