Which mechanical outcome arises when a historically-constructed rope bridge's hemp fibers experience excessive hygroscopic expansion?

💡 Explanation

Deck sagging occurs because humidity absorption induces hygroscopic expansion, weakening hemp fibers and reducing tensile strength; therefore, the bridge sags, rather than becoming more rigid because of material properties degradation.

• Which benefit occurred due to terrace construction combined with sophisticated irrigation in Inca maize cultivation?
• Which consequence resulted from lime mortar carbonation halting in Roman fortifications?
• Which benefit resulted from selective breeding of maize by pre-Columbian civilizations at high altitudes?
• Which critical risk increased as 18th-century shipbuilding adopted standardized component sizing?
• Which problem plagued stone aqueducts when ground shifted?
• Which manufacturing outcome increased sharply during Byzantine controlled silk production when sericulture adapted to include hybrid silkworm breeding?