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← TechnologyWhich risk increases when a turbocharger spins beyond its design speed limit?
A)Compressor surge from airflow impedance✓
B)Thermal shock to exhaust manifold
C)Increased fuel consumption from lean mix
D)Catalytic converter failure from rich mix
💡 Explanation
When a turbocharger exceeds its design speed, compressor surge occurs because the airflow becomes choked, leading to pressure fluctuations that stall the compressor blades. Therefore compressor surge occurs, rather than thermal shock, fuel efficiency issues requiring fuel system malfunction, or catalytic converter issues.
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