Furnace Technology Turndown ratio of a burner gives an idea of the __________ in the furnace. Volume of the combustion chamber Range of fuel firing rates Minimum heat input rate only Maximum heat input rate only Volume of the combustion chamber Range of fuel firing rates Minimum heat input rate only Maximum heat input rate only ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables affects the furnace capacity? All of these Temperature of flue gas Thermal conductivity of stock Thickness of heating stock All of these Temperature of flue gas Thermal conductivity of stock Thickness of heating stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which furnace employs an I.D. fan for the removal of flue gases from the furnace? Blast furnace stoves Beehive coke oven High pressure boiler Coke oven Blast furnace stoves Beehive coke oven High pressure boiler Coke oven ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Combustion of coal by supplying it around the burner Transportation of coal Drying of coal Preheating the primary air Combustion of coal by supplying it around the burner Transportation of coal Drying of coal Preheating the primary air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators as compared to recuperators for the same duty All of these Involve higher initial cost Store smaller quantity of waste heat Are lighter & compact All of these Involve higher initial cost Store smaller quantity of waste heat Are lighter & compact ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 80 5 50 20 80 5 50 20 ANSWER DOWNLOAD EXAMIANS APP
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