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← TechnologyWhich risk increases within aircraft landing gear during touchdown impact?
A)Fatigue crack propagation accelerates✓
B)Hydraulic fluid viscosity stabilizes
C)Sensor accuracy improves subtly
D)Corrosion rates spontaneously reduce
💡 Explanation
Fatigue crack propagation accelerates at touchdown impact because cyclic stress increases around existing flaws; therefore, fatigue life decreases, cracking the landing gear, rather than an alternative like increased viscosity affecting damping efficiency under sudden loads.
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