Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? None of these Metallic recuperator Ceramic recuperator Regenerator None of these Metallic recuperator Ceramic recuperator Regenerator ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators are used for waste heat recovery in Soaking pits Blast furnace stoves By-product coke ovens Beehive coke oven Soaking pits Blast furnace stoves By-product coke ovens Beehive coke oven ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement Accelerating the rate of scaling All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement Accelerating the rate of scaling ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent. 50 65 85 99 50 65 85 99 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. 4500 2000 6000 3000 4500 2000 6000 3000 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Artificial draught produced by a fan in the furnace can be controlled by the Damper Speed of the fan All of these Variation in the pitch of fan blades Damper Speed of the fan All of these Variation in the pitch of fan blades ANSWER DOWNLOAD EXAMIANS APP
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