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← ScienceWhich risk increases substantially when a jet engine operates near stall?
A)Compressor blade fatigue failure✓
B)Turbine disk over-temperature
C)Fuel injector nozzle clogging
D)Combustion chamber flameout
💡 Explanation
Operating near stall can induce aerodynamic instability and flow reversal, causing increased vibration, thus leading to high-cycle fatigue on compressor blades. This fatigue happens because fluctuating stresses exceed material limits, therefore crack initiation is accelerated rather than thermal or fuel-related issues immediately arising.
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