Which risk increases when turbocharger rotor speed exceeds manufacturer's specified limit due excessive exhaust gas temperature?

💡 Explanation

When rotor speed exceeds the limit from high exhaust temperature, creep rupture occurs because high temperature weakens the rotor material and centrifugal stresses cause plastic deformation over time, leading to eventual cracking. Therefore rotor failure from creep rupture results, rather than surge, seizure or intercooler damage that have different triggering conditions.

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