Heat transfer takes place through a liquid medium surrounding the
submerged material under heating, in case of a/an
(A) Blast furnace
(B) Steam boiler
(C) Salt bath furnace
(D) Annealing furnace
submerged material under heating, in case of a/an
(A) Blast furnace
(B) Steam boiler
(C) Salt bath furnace
(D) Annealing furnace