A riser in casting is described by which of the following (three correct answers) :
A) an insert in the casting that inhibits buoyancy of the core
B) gating system in which the sprue feeds directly into the cavity
C) metal that is not part of the casting
D) source of molten metal to feed the casting and compensate for shrinkage during solidification
E) waste metal that is usually recycled
Correct Answer:
Verified
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