To study and observe various stages of casting through demonstration of sand casting process

What is the primary purpose of sand casting? (LO1)
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What is the function of a core in sand casting? (LO3)
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Which material is most commonly used for making moulds in sand casting? (LO1)
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What is the main function of a riser in sand casting? (LO2)
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What type of defects can occur if the sand mould has poor permeability? (LO3)
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