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← ScienceWhich risk increases when a turbine engine experiences surge?
A)Rotor blade fatigue accelerates drastically✓
B)Fuel consumption efficiency dramatically rises
C)Thermal stress decreases within combustor
D)Engine thrust linearly increases beyond design
💡 Explanation
Blade fatigue is accelerated by surge because reversed flow induces high-frequency vibrations due to the **aerodynamic stalling** of compressor blades. Therefore, blade failure will happen much faster rather than blades experiencing predictable stresses under design loads or optimal conditions.
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