Crucible indicated for casting base metal alloys is______________?
Correct answer: B. Quartz crucible
- A. Carbon crucible
- B. Quartz crucible
- C. Clay crucible
- D. High melting plastic crucible
Explanation
Quartz or fused-silica crucibles withstand the high temperatures and chemical conditions used for base-metal alloy casting. Carbon crucibles are more commonly associated with certain noble-metal alloys and may introduce contamination.
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