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. 1250 350 750 1050 1250 350 750 1050 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace. Walking beam Rotary hearth Shaft Tunnel Walking beam Rotary hearth Shaft Tunnel ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The purpose of controlling the furnace atmosphere is to prevent surface attack by Oxidation/scaling Sulphur penetration Decarburising Either of the above Oxidation/scaling Sulphur penetration Decarburising Either of the above ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a batch furnace? Reheating furnace None of these Cupola Glass tank furnace Reheating furnace None of these Cupola Glass tank furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The reason for excessive clinker formation in gas producers is the 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 All of these Use of coal/coke containing a high % of fines and ash 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 All of these Use of coal/coke containing a high % of fines and ash ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ingress of cold air in the furnaces through cracks, charging doors, openings etc. Increases the load on the induced draft fan Reduces the furnace draught All of these Reduces the flue gas temperature and makes the furnace atmosphere oxidising Increases the load on the induced draft fan Reduces the furnace draught All of these Reduces the flue gas temperature and makes the furnace atmosphere oxidising ANSWER DOWNLOAD EXAMIANS APP
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