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Welder Practice Test: Properties Of Metal And Heat Treatment
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Related: Welder Practice Test: Heat And Temperature

Welder Practice Test: Properties Of Metal And Heat Treatment
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25 Questions

1. The maximum temperature of metal where its internal structure begins to change.
2. Prime benefit of flame hardening is -----------
3. Heating of a joint immediately after welding is called ---------
4. If a material easily breaks then it is known as ----------
5. The main feature of an electrically insulated material is ----------
6. If a metal regains its original shape when a stress acting upon it is removed , the metal id said to have --------
7. Which of the following material is highly ductile?
8. The purpose of steel hardening is -------
9. The need for pre and post heating carbon steels may be indicated by ---------
10. What is the purpose of annealing ?
11. What is to be added to increase the hardness of metal?
12. Steel is an alloy of -----------
13. Which of the metal has the highest thermal conductivity?
14. What is the preheating temperature of metal if an alloy steel with 0.3%carbon and 0.5% molybdenum.
15. In case of cast iron welding ,preheat is done to avoid -------------
16. High carbon steel has the following critical temperature.
17. Heating a metal below 400*c and cooling it in water is called ---------
18. What is the melting point of steel?
19. --------- is the ability of metal to be pulled into wires.
20. Post heating of weld is applied ----------
21. What is the melting point of aluminum?
22. Hardness of steel depends upon -------------
23. Which heat treatment process is required to make the iron soft?
24. Carbon steel is tempered at ----------
25. Which property of steel gets enhanced when carbon steel is heated above high critical point and is cooled immediately?

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