Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the High exit flue gas temperature from the furnace Excessive power requirement of air blower Enhanced sensible heat loss in the flue gas Intermittant and uncontrolled combustion of the fuel High exit flue gas temperature from the furnace Excessive power requirement of air blower Enhanced sensible heat loss in the flue gas Intermittant and uncontrolled combustion of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard pitch is used for making Pulverised fuel Plastics Insecticides Perfumes Pulverised fuel Plastics Insecticides Perfumes ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Actual flame temperature is always lower than the adiabatic flame temperature, because there is Both A & B No possibility of obtaining complete combustion at high temperature Neither A nor B Always loss of heat from the flame Both A & B No possibility of obtaining complete combustion at high temperature Neither A nor B Always loss of heat from the flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Reduces its calorific value Is not undersirable Badly affects the quality of steel Increases its caking power Reduces its calorific value Is not undersirable Badly affects the quality of steel Increases its caking power ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven Takes 2-3 days for coking of coal but requires no external fuel for heating Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Facilitates by-products recovery Takes 2-3 days for coking of coal but requires no external fuel for heating Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Facilitates by-products recovery ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent. 55 to 75 15 to 25 35 to 45 75 55 to 75 15 to 25 35 to 45 75 ANSWER DOWNLOAD EXAMIANS APP
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