Which risk increased as Incan masonry walls became taller?

💡 Explanation

Increased height subjects the different rock types in the masonry to varying temperature gradients, resulting in differential thermal expansion stress. Therefore, taller walls increased the risk of cracking and instability, rather than pressure, friction, or weathering alone.

• Which property limited large-scale arch bridges using layered wrought iron in 19th-century structures?
• Which result followed from employing siphonarii during sieges?
• Which slope instability risk decreased in Inca terracing?
• Which effect increased Roman ballista projectile range due to twisted sinew torsion bundles, despite energy loss?
• After prolonged rainfall, which risk specifically increases within Inca dry stone masonry walls?
• Which outcome accelerated hull degradation on composite ships during the 18th century?