Furnace Technology Air filtration in a furnace Increases the flue gas temperature 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 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C. 5 60 20 40 5 60 20 40 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. 1250 350 750 1050 1250 350 750 1050 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Furnace pressure is normally controlled by regulating the Fuel gas pressure Speed of I.D. fan Damper Air pressure Fuel gas pressure Speed of I.D. fan Damper Air pressure ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Pulverised fuel fired furnaces employ __________ fuel firing. All of these Horizontal Tangential Vertical All of these Horizontal Tangential Vertical ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turndown ratio of a burner gives an idea of the __________ in the furnace. Volume of the combustion chamber Maximum heat input rate only Range of fuel firing rates Minimum heat input rate only Volume of the combustion chamber Maximum heat input rate only Range of fuel firing rates Minimum heat input rate only ANSWER DOWNLOAD EXAMIANS APP
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