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← TechnologyWhich risk increases when a hydraulic actuator operates near vacuum?
A)Increased fluid bulk modulus
B)Hydraulic line pressure surges
C)Internal cavitation and erosion✓
D)Decreased actuator seal friction
💡 Explanation
Cavitation increases because the rapidly changing pressure causes bubbles to form and collapse violently, eroding surfaces. Therefore, internal cavitation is the greater risk, rather than pressure surges arising from changes in flow parameters.
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