Q. Which of the following furnace is used for steel only? (Solved)
1. Indirect arc furnace
2. Cupola
3. Low specific heat of quenching oil
4. Open hearth furnace
5. Air furnace
- d. Open hearth furnace
1. Indirect arc furnace
2. Cupola
3. Low specific heat of quenching oil
4. Open hearth furnace
5. Air furnace