Furnace Technology While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C. 3000 6000 4500 2000 3000 6000 4500 2000 ANSWER DOWNLOAD EXAMIANS APP
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 Shaft furnaces are used for Calcining All of these Roasting Smelting Calcining All of these Roasting Smelting ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Hearth furnaces are not used for Melting Reheating Roasting None of these Melting Reheating Roasting None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have High excess air No O₂ in flue gas CO in flue gas None of these High excess air No O₂ in flue gas CO in flue gas None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The reason for excessive clinker formation in gas producers is the Use of coal/coke containing a high % of fines and ash All of these Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of fuel having too low an ash fusion temperature Use of coal/coke containing a high % of fines and ash All of these Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of fuel having too low an ash fusion temperature ANSWER DOWNLOAD EXAMIANS APP
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