Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Zircon powder Thoria Graphite powder Beryllium Zircon powder Thoria Graphite powder Beryllium ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of Low emissivity High thermal conductivity Both A and B Neither A nor B Low emissivity High thermal conductivity Both A and B Neither A nor B 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. 40 5 60 20 40 5 60 20 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a directly fired intermittant furnace? Walking beam reheating furnace Tunnel kiln Reverberatory furnace Tower furnace Walking beam reheating furnace Tunnel kiln Reverberatory furnace Tower furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turndown ratio of a burner gives an idea of the __________ in the furnace. 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 Volume of the combustion chamber Maximum heat input rate only Range of fuel firing rates ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology __________ furnace is not an electric furnace. Arc Pot Resistance Induction Arc Pot Resistance Induction ANSWER DOWNLOAD EXAMIANS APP
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