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Production Process: Metal casting
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Production Process: Metal casting
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25 Questions

1. Additives can be used for the non-ferrous application to avoid the poor collapsibility of the mould.
2. Which type of pattern should be used for making stuffing box of the steam engine?
3. Which of the following devices is used for the formation of shell mould in the shell moulding procedure?
4. At the last of shell moulding procedure, the Dump box is rotated backward for adhering of as much as the possible amount of sand to the metallic pattern.
5. The skeleton pattern is filled with sand.
6. What is the function of cores in the casting process?
7. It is easy to produce any complex shapes and narrow sections in the die casting.
8. Co2 moulding is mainly used for the increase in strength and hardness of the moulds and cores.
9. Which of the following pattern operation is cheapest?
10. The quality of the final product is not dependent on _______________
11. Which of the following statement is true?
12. Which of the following compositions of the shell sand is used for avoiding of thermal crack during pouring?
13. There is no need for any external support for the shells at the time of pouring of molten metal.
14. In shell moulding sand preparation, the resin is combined with a catalyst (hexa) to develop the_____
15. Using of the ladle in the cold chamber die casting has no affects on contact time between the molten metal and the shot chamber.
16. Which of the following considerations distinguish die casting from the permanent mould casting?
17. Over-curing or under-curing of the shell mould, leads to the generation of sophisticated problems in the shell mould.
18. Piston rings are produced using which pattern?
19. It is very safe to use Co2 in Co2 moulding, so it eliminates the use of any shielding apparatus.
20. Which of the following ways of cooling is used for the maintaining of die temperature?
21. In a three piece pattern moulding arrangement, what keeps the alignment between the two parts of the pattern?
22. Continuous passing of Co2 through the mould can decrease the strength of mould and results in a weak mould.
23. In the hot chamber die casting process, which of the following parts is used for the pumping of liquid metal into the cavity?
24. Which of the following is ‘not’ an allowance given to the pattern for casting?
25. Which of the following synthetic resins are used for mixing with sand in shell moulding?