For casting processes in metals, which of the following are true? (This question has more than one correct answer) a. May involve a multi-step casting process with an initial prototype used to shape the mould b. Can lead to internal defects in the metal c. Leads to formation of a solid part consisting of fused precursor particles d. Requires materials with high toughness to resist deformation e. Can only be used to form simple shapes

For casting processes in metals, which of the following are true? (This question has more than one correct answer) a. May involve a multi-step casting process with an initial prototype used to shape the mould b. Can lead to internal defects in the metal c. Leads to formation of a solid part consisting of fused precursor particles d. Requires materials with high toughness to resist deformation e. Can only be used to form simple shapes

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Which among the following design considerations for casting to be followed to reduce stress concentration in parts? O a. Shape the casting for orderly solidification O b. Avoid abrupt changes in cross section Oc Avoid thin sections O d. Make provision for easy removal of pattern from the mould
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2. State one casting defect associated with excess moisture content in the mould. 3. State two reasons why moisture is required in moulding sand 4. Knust steel foundry shop is to formulate a moulding sand containing sand, clay and water only, in the sand to clay fraction of and respectively. If the sand obtained is dry but the clay is moist with moisture content of 15%, how much water should be added to formulate 850g moulding sand?
4. Briefly describe die casting process and name 2 types.
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