A. Electric furnace walls
B. Steel melting furnace
C. Open hearth furnace
D. Burning zone of cement kilns
Correct Answer: Steel melting furnace ✔
Last Updated: March 04, 2019
A. Electric furnace walls
B. Steel melting furnace
C. Open hearth furnace
D. Burning zone of cement kilns
Correct Answer: Steel melting furnace ✔
Last Updated: March 04, 2019