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← ScienceWhich risk increases near a ship's propeller when wake turbulence intensifies?
A)Propeller blade cavitation erosion✓
B)Increased frictional hull drag
C)Rudder effectiveness augmentation
D)Reduced overall power consumption
💡 Explanation
Increased wake turbulence causes rapid pressure fluctuations near the propeller, therefore vapour bubbles form and collapse violently as the *cavitation* mechanism erodes the blades faster rather than simply inducing higher drag because the pressure changes are localized.
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