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← HistoryWhen a fully-loaded 18th-century sailing ship experiences heavy rolling, which outcome increases due to metacentric height?
A)Reduced structural stress lifespan✓
B)Decreased rudder effectiveness margin
C)Increased resistance from hull friction
D)Lowered propellant use efficiency
💡 Explanation
Excessive metacentric height amplifies the rate of roll, causing increased stresses on hull joints, because it enhances the restoring moment. Therefore, structural fatigue accelerates, rather than the rudder losing effectiveness, which is related to hydrodynamic drag.
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