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Welder Practice Test: Weldability of Steel
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Steel's weldability is its ability to be welded without cold cracking. It's inversely proportional to steel's hardenability.

Welder Practice Test: Weldability of Steel
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25 Questions

1. How many groups of mild steel pipes are there?
2. Which type of polarity is used in welding non ferrous metals?
3. Which size of CCMS filler rod is to be used for welding plate of 8mm thick with ‘V’ edge preparation?
4. What are the standard electrode lengths available?
5. What is the purpose of oxygen lever in gas cutting?
6. What benefit we get out of a carburising flame?
7. What makes for the buckling of weld joint, in stainless steel during cooling?
8. Which type of cast iron is soft?
9. What should be the bevel angle for edge preparation of 6mm thick pipe welding?
10. What is the process of heating steel to specific temperature and cooling suddenly?
11. Which type of cast iron offers greater resistance to shock?
12. What are the defects in generated acetylene gas?
13. Which gauging nozzle is selected for rivet head cutting?
14. What should be the pre - heating temperature of aluminium job for gas welding?
15. What is the type of distortion shown?
16. What is the grade of hacksaw blades with pitch 0.8mm?
17. How many segments are to be selected for welding 50 mm j pipe?
18. Which test indicates the hardness of a metal?
19. What is the reason for the defect of more spatter during arc welding?
20. What is the name of the part ‘x’ shown of a portable cutting machine?
21. What is the type of distortion shown?
22. What is the cause of porosity in arc welding?
23. What is the main purpose of ‘Normalising’ steel?
24. Which heat treatment process causes the reduction of brittleness in the steel?
25. Which of the following metals have high thermal conductivity?