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← HistoryWhich mechanical consequence resulted from iron ships vibrating at their resonant frequency caused by engine harmonics?
A)Rivet fatigue and hull separation✓
B)Propeller cavitation and speed loss
C)Rudder jamming due to torque
D)Boiler explosion and fire risk
💡 Explanation
When engine harmonics matched iron ship resonant frequency, structural resonance occurred because cyclic stress amplified at rivets causing fatigue crack propagation leading to loosening and hull separation. Therefore, rivet fatigue resulted, rather than cavitation, jamming, or explosion, which result from fluid dynamics or pressure failures.
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