Casting shrinkage is compensated by_______________?
Correct answer: D. All of the above
- A. Thermal expansion
- B. Hygroscopic expansion
- C. Wax expansion
- D. All of the above
Explanation
Casting alloy contraction is offset by expansion of the wax pattern and investment, including thermal and hygroscopic expansion. Therefore, all three listed types of expansion can contribute to compensation.
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