Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of_________________? | MCQ Hive

Chemical Engineering

Q Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of_________________?

A A. Graphite powder
B B. Thoria
C C. Zircon powder
D D. Beryllium

Previous Heat transfer takes place through a liquid medium surro…

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