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Which outcome increases when thermal expansion constricts coolant flow to a grinding wheel?

A)Workpiece surface oxidation flaws
B)Precise dimensional tolerance control
C)Extended grinding wheel lifespan
D)Improved swarf removal efficiency

💡 Explanation

Surface oxidation flaws increases excessively from constrained coolant. Thermal expansion reduces flow initiating thermal runaway, because the **boiling crisis** prevents effective heat removal, therefore extreme surface temperatures exceed oxidation limits, rather than maintaining expected conditions with optimized heat transfer.

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