Furnace Technology The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent. 40 70 85 15 40 70 85 15 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The reason for excessive clinker formation in gas producers is the Use of fuel having too low an ash fusion temperature Development of hot spots in the fuel bed and an abnormally high rate of gasification All of these Use of coal/coke containing a high % of fines and ash Use of fuel having too low an ash fusion temperature Development of hot spots in the fuel bed and an abnormally high rate of gasification All of these Use of coal/coke containing a high % of fines and ash ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators are used for waste heat recovery in Beehive coke oven By-product coke ovens Blast furnace stoves Soaking pits Beehive coke oven By-product coke ovens Blast furnace stoves Soaking pits ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the 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 All of these Amount of excess air supplied and load on the boiler ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the charge/stock in a furnace does not depend upon the Emissivity of refractory walls Initial temperature of the charged stock Flue gas temperature Type of fuels viz solid, liquid or gaseous Emissivity of refractory walls Initial temperature of the charged stock Flue gas temperature Type of fuels viz solid, liquid or gaseous ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. 1050 350 750 1250 1050 350 750 1250 ANSWER DOWNLOAD EXAMIANS APP
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