Which outcome is most likely as a lathe's spindle bearings experience increased temperatures due to inadequate coolant?

💡 Explanation

Thermal expansion causes reduced machining precision because increased heat weakens tolerances within the spindle and workpiece. Therefore, overall dimensional control degrades, rather than an improbable increase in material hardness or decreased friction since the opposite effect is far more probable.

• Which risk increases when welding directly to reinforcing bars?
• Which outcome occurs when a distribution transformer experiences prolonged harmonic distortion?
• Which consequence results when fluid viscosity is abnormally low in a hydraulic service valve?
• Which challenge arises when light encounters impurities within optical fiber?
• Which unstable outcome can materialize during transonic flight due to uncoordinated aileron inputs?
• Which outcome occurs when a large industrial three-phase induction motor operates under sustained undervoltage conditions?