Metal-casting Questions Set 9:
In shell molding, the shell is made of
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Which of the following is not an allowance given to the pattern in casting?
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The process by which shell-like castings (like toys) are made is
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The shrinkage of metals during cooling in molds includes:
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Directional solidification in castings can be improved by using
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In centrifugal casting, the impurities are
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Which process produces a casting by forcing molten metal into a mold cavity under pressure?
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Castings are preferred to fabricated structures because:
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The purpose of the sand texture test is to determine:
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An aluminum alloy (density 2600 kg/m³) casting is to be produced. A cylindrical hole of 100 mm diameter and 100 mm length is made in the casting using a sand core (density 1600 kg/m³). The net buoyancy force (in Newtons) acting on the core is _____.
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