Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C. 2000 4500 6000 3000 2000 4500 6000 3000 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum thermal efficiency of boiler may be about __________ percent. 90 65 10 25 90 65 10 25 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Large tonnage of refractory bricks are dried in a Muffle furnace Shaft furnace Rotary hearth furnace Tunnel kiln Muffle furnace Shaft furnace Rotary hearth furnace Tunnel kiln ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is not a directly fired furnace? Sintering furnace Open hearth furnace Calcination kiln By-product coke oven Sintering furnace Open hearth furnace Calcination kiln By-product coke oven ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In salt bath furnace, heat is transferred to the charge mainly by None of these Conduction Convection Radiation None of these Conduction Convection Radiation ANSWER DOWNLOAD EXAMIANS APP
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