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

What is the purpose of a sprue base in a gating system? (LO2)
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What is the function of a riser in sand casting? (LO2)
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What is the final step in the sand-casting process before the casting is used? (LO3)
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What is the purpose of vents in a sand mould? (LO2)
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What is the primary purpose of a gating system in sand casting? (LO2)
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