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← ScienceWhich outcome occurs when liquid enters a hot engine cylinder?
A)Mechanical lockup impedes piston motion✓
B)Rapid lubricant breakdown causes oil starvation
C)Increased thermal efficiency exceeds Carnot limit
D)Exhaust backpressure reduces engine air intake
💡 Explanation
Mechanical lockup results because liquids are incompressible, so hydraulic lock prevents the piston's movement. Piston motion is impeded by this pressure rather than increased efficiency; therefore, mechanical integrity is threatened rather than thermal optimization under this constraint.
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