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← HistoryDuring 18th-century ship construction, which consequence occurred when timber humidity exceeded limits during plank fastening?
A)Plank splitting after drying✓
B)Rivet corrosion weakens iron
C)Seam gaps increase water ingress
D)Adhesive separation from frame
💡 Explanation
Timber swelling due to high humidity leads to compressive forces during fastening creating internal stresses. The planks undergo hygroscopic stress because dimensional changes in wood cells due to moisture content imbalances introduce stress; therefore, splitting happens upon drying, rather than corrosion alternatives which occurs via electrochemical pathways instead of mechanical forces.
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