Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an__________________?
Correct answer: C. Salt bath furnace
- A. Blast furnace
- B. Steam boiler
- C. Salt bath furnace
- D. Annealing furnace
Explanation
In a salt-bath furnace, the workpiece is immersed in molten salt, which acts as the liquid heat-transfer medium and gives rapid, uniform heating. The other listed units primarily transfer heat through gases, flames, or solid furnace surfaces.
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