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← ScienceWhich risk increases when a turbocharger cycle overspeeds?
A)Compressor surge induces blade fatigue✓
B)Catalytic converter faces thermal runaway
C)Intercooler efficiency significantly decreases
D)Wastegate valve exhibits mechanical seizure
💡 Explanation
Compressor surge causes blade fatigue because the angle of attack fluctuates, leading to cyclical stress beyond design limits on the rotating blades causing work imparted to reverse flow; therefore, blade failures increase rather than thermal runaway of a catalyst under normal conditions.
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