Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 44119 45-50 65-70 25-30 44119 45-50 65-70 25-30 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables does not affect the furnace capacity? Gas velocity in furnace Ratio of wall surface to surface of stock Size of the furnace None of these Gas velocity in furnace Ratio of wall surface to surface of stock Size of the furnace None of these 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 Air filtration in a furnace None of these Is indicated by flame sting out Reduces its thermal efficiency Increases the flue gas temperature None of these Is indicated by flame sting out Reduces its thermal efficiency Increases the flue gas temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators as compared to recuperators for the same duty All of these Involve higher initial cost Are lighter & compact Store smaller quantity of waste heat All of these Involve higher initial cost Are lighter & compact Store smaller quantity of waste heat ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators are used for waste heat recovery in Blast furnace stoves By-product coke ovens Beehive coke oven Soaking pits Blast furnace stoves By-product coke ovens Beehive coke oven Soaking pits ANSWER DOWNLOAD EXAMIANS APP
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