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← TechnologyWhich outcome occurs when dissolved air accelerates cavitation damage in a marine hydraulic actuator?
A)Higher stress induced crack propagation✓
B)Elevated fluid bulk modulus threshold
C)Improved lubrication film formation
D)Reduced system thermal expansion
💡 Explanation
When a marine hydraulic actuator experiences cavitation the released air bubbles enhance the implosion intensity via the **nucleation** mechanism. This intensifies localized stresses, thereby promoting crack propagation because pressure fluctuations accelerate fatigue, rather than yielding lubrication improvements.
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