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← TechnologyWhich outcome leads to diminished turbocharger efficiency when compressor blade erosion occurs from inducted foreign objects?
A)Increased exhaust back pressure
B)Reduced air mass flow✓
C)Elevated turbine inlet temperature
D)Decreased compressor surge margin
💡 Explanation
Reduced air mass flow arises because compressor blade erosion decreases the pressure ratio achieved by the turbocharger via reduced aerodynamic efficiency. Therefore, airflow is impaired, rather than pressure increases due to an impeded exit flow or increased temperatures.
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