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Mr. Dubey • 100.64K Points
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Q. During the manufacturing of a casting, the purpose of a riser is:

  • (A) To introduce molten metal into the mould
  • (B) To provide additional molten metal to allow for shrinkage during solidification
  • (C) To allow excess heat to escape during solidification
  • (D) To provide a vent for excess steam to escape
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