General Studies · Casting
The primary purpose of a sprue in a metal casting mould is to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Feed molten metal into the casting at a rate matching the solidification rate
- 2Act as a reservoir to compensate for shrinkage during solidification
- 3Channel the molten metal from the pouring basin down into the runner or gate✓
- 4Ensure directional solidification by feeding metal continuously
Correct answer
Channel the molten metal from the pouring basin down into the runner or gate
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