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Which outcome occurs in a turbocharger when crankshaft torsional vibrations exceed design tolerances?

A)Increased compressor blade fatigue
B)Reduced intercooler heat rejection
C)Elevated manifold absolute pressure
D)Decreased wastegate valve efficiency

💡 Explanation

Increased compressor blade fatigue occurs because resonance between crankshaft vibrations and compressor leads to high-cycle fatigue; the mechanism is sympathetic vibration. Therefore blade failure results, rather than alterations of heat transfer, pressure, or valve function.

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