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← TechnologyWhich risk increases when accumulator pre-charge bleeds in hydraulic landing gear?
A)Pressure undershoot during rapid compressions✓
B)Increased oil viscosity instability issues
C)Reduced resistance to thermal expansion
D)Decreased dampening of external vibrations
💡 Explanation
Lower accumulator pre-charge reduces nitrogen's ability to maintain minimum pressure during sudden strut compression, causing pressure undershoot because Boyle's Law becomes less effective. Therefore, inadequate damping results, rather than increased dampening, oil instability or expansion resistance.
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