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← HistoryWhich material failure increases in Inca rope suspension bridges when temperature drops?
A)Yarn extensibility severely declines✓
B)Fibers experience plastic deformation
C)Cable strain becomes negligible
D)Supports experience dynamic loading
💡 Explanation
Yarn extensibility declines at lower temperatures primarily because of increased cohesion between fibers restricting movement, leading to brittle fracture; therefore reduced extensibility increases failure chances rather than deformation, negligible strain, or only affecting auxiliary supports.
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