Which constraint necessitates precise rope angles within Inca suspension bridges?

💡 Explanation

The bridge used a system of ropes where force equilibrium governs structural integrity. Cable rupture risk increases because uneven force distribution induces excessive **tensile stress**, therefore minimized deck cable stress is key, rather than irrelevant aesthetic considerations, at altitude.

• Which outcome results from exceeding terraced soil saturation?
• Which risk increased if Incan masons violated 'ashlar' construction principles when building high retaining walls for terracing?
• Which structural vulnerability emerges when a Roman fort wall section is built on unconsolidated reclaimed marshland?
• Which risk was most critical when Viking longships navigated open ocean relying on ropes?
• Which risk increased within Byzantine silk weaving due to static electricity?
• Which risk increased for Byzantine defenders whenever trebuchet range shortened on siege?