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← TechnologyWhich risk significantly increases when a CNC lathe exceeds specified backlash tolerances?
A)Increased surface finish roughness✓
B)Elevated spindle motor temperatures
C)Reduced coolant flow rate
D)Decreased part clamping force
💡 Explanation
Increased surface roughness occurs due to positional inaccuracies. Because exceeding backlash tolerance permits excessive tool movement, which amplifies any vibration issues. Therefore, roughness rises, rather than clamping, cooling, or motor temperature effects that occur under different conditions.
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