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Q5-Explain briefly: 1) The advantages and disadvantages of sand casting over investment casting? 2) The reasons for hot tearing in castings. 3) In a sand-casting
Q5-Explain briefly: 1) The advantages and disadvantages of sand casting over investment casting? 2) The reasons for hot tearing in castings. 3) In a sand-casting operation, what factors determine the time at which you would remove the casting from the mold? 4) The properties that determine the quality of a sand mold for sand casting
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