Furnace Technology Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent. 20 80 40 65 20 80 40 65 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Fuel economy in furnaces can be achieved by All of these Reducing the heat loss through furnace openings & doors Preheating the combustion air Using oxygen enriched combustion air All of these Reducing the heat loss through furnace openings & doors Preheating the combustion air Using oxygen enriched combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology To reduce the stack loss, heat recovery from flue gas can be done by Preheating of cold stock Steam generation in waste heat boilers All of these Preheating of combustion air Preheating of cold stock Steam generation in waste heat boilers All of these Preheating of combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Accelerating the rate of scaling All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement Accelerating the rate of scaling All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum thermal efficiency of boiler may be about __________ percent. 25 10 65 90 25 10 65 90 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the All of these Amount of excess air supplied and load on the boiler Type of burner and combustion chamber Physical nature, ash content and fineness of the coal All of these Amount of excess air supplied and load on the boiler Type of burner and combustion chamber Physical nature, ash content and fineness of the coal ANSWER DOWNLOAD EXAMIANS APP