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Which outcome occurs when an internal combustion engine's cooling system fails completely?

A)Rapid engine overheating and component seizure
B)Increased fuel efficiency, reduced exhaust emissions
C)Delayed oil degradation, extended engine lifespan
D)Decreased cylinder pressure, lower peak torque

💡 Explanation

Complete cooling system failure results in rapid engine overheating because the **loss of heat transfer mechanism** allows frictional heat to accumulate rapidly, causing thermal expansion and component seizure; therefore, catastrophic engine failure occurs rather than efficiency gains under normal operating conditions.

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