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← TechnologyWhich risk increases when a hydraulic flight control system exhibits structural compliance?
A)Control surface flutter occurrence✓
B)Compressor stall in the engine
C)Increased skin friction drag
D)Elevated fuel consumption anomalies
💡 Explanation
A decrease in stiffness lowers the frequency required to excite natural modes; control surface flutter can occur because reduced damping enables oscillations. Therefore flutter arises rather than the other options, which won't be directly affected via this stiffness change with hydraulic servo controls.
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