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Which risk increases when thermal fluctuations exceed machine stability during precision grinding?

A)Harmonic resonance amplification
B)Surface finish degradation
C)Overload safety tripping
D)Material phase transformation

💡 Explanation

Surface finish degradation results because thermal expansion introduces errors in grinding setup, altering surface profile via *geometric error propagation*, therefore increasing roughness, rather than resonance, tripping, or phase changes which are independent processes under these typical thermal limits.

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