Which is not a hearth furnace ?
Correct answer: C. Cupola
- A. Glass tank furnace
- B. Open hearth furnace
- C. Cupola
- D. Reheating furnace
Explanation
A cupola is a vertical shaft furnace in which solid fuel and the charge move downward, whereas glass tank, open-hearth, and reheating furnaces have hearths supporting the charge.
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