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Which risk increases when a turbocharger operates constantly at maximum compressor speed?

A)Compressor surge from choked airflow
B)Pre-ignition from excessive valve overlap
C)Cylinder knocking from lean condition
D)Catalytic converter failure from rich condition

💡 Explanation

When a turbocharger runs at peak speed, choked airflow causes compressor surge because the compressor cannot effectively pump air against the pressure, leading to flow reversal and vibrations. Therefore compressor surge results, rather than other engine issues that relate to fuel mixture or combustion timing.

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