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Casting Practice Test: Metal Furnace and Practice
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Metal Furnace and Practice topics include: Remelting furnace selection, cupola and its efficiency, coke bed and cupola charge calculations, crucible and electric furnaces, reverberatory furnace, open heart surface, crucibles, direct arc and rocking furnace, converter, induction furnace with high and low frequency. Metal furnaces are heating chambers that melt metal. There are five basic types of furnaces: Crucible, Reverberatory, Stack melter, Dosing, Rotary.  Here are some types of metal furnaces: Electric arc furnace (EAF): A cylindrical vessel made of heavy steel plates. It uses an... Show more
Casting Practice Test: Metal Furnace and Practice
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25 Questions

1. What is the purpose of auxiliary tuyeres?
2. What is the minimum capacity of an air furnace?
3. Oxidation of manganese liberates more heat than oxides of carbon.
4. Up to what temperature can molten steels be produced in a side blown converter?
5. Open hearth process did not allow the steel to be in contact with which gas?
6. Which material is used for making the roof of an acid lined furnace?
7. Given: cupola diameter = 35cm, mass of bed charge = 300kg, coke density = 505kg/m3. Find height of groove.
8. Which of the following is not a property of a crucible?
9. The impurities are burnt from which material in an open hearth furnace to produce steel?
10. How much heat is produced in the formation of Carbon dioxide?
11. Malleable iron can be produced using a reverberatory furnace.
12. The converter method is not widely employed.
13. Carbon pickup does not depend on which of the following factors?
14. What is typically the diameter of a direct arc furnace?
15. In the iron-iron carbide diagram, what is the carbon percentage by weight at eutectoid point?
16. Given: cupola diameter = 30cm, mass of bed charge = 270kg, coke density = 545kg/m3. Find height of groove.
17. The melting rate is directly proportional to the diameter of the cupola.
18. The combustion section of the cupola furnace is also called as oxidizing zone.
19. The crucible process is used for production of which material?
20. Which of the following material is not melted by an indirect electric arc furnace?
21. Which coal is used as a fuel in an air furnace?
22. In the formation of carbon dioxide, what should the temperature of coke be?
23. Given: cupola diameter = 65cm, Height of groove = 135cm, coke density = 490kg/m3. Find mass of bed charge.
24. Which of the following material is used in converters for making steel?
25. The weight of the bed charge does not depend on which of the following factor?