Which risk during Inca stone masonry increases when poorly sorted stones are used?

💡 Explanation

Differential settling results because stones of variable sizes and shapes compact unevenly under load leading to failure. This induces stresses within the foundation and therefore structural instability occurs, rather than uniform compression or resistance to surface degradation.

• Which consequence results when minarets settle unevenly in complex Mughal garden water systems?
• Which adjustment compensates for parallax error during astrolabe sighting?
• Which risk increased whilst using early brass astrolabes for navigation?
• Which structural failure mode risks early Roman concrete domes if exposed to continuous water infiltration?
• Which structural risk increased with multistory aqueducts such as the Pont du Gard by overlapping arches?
• Which systematic error arises when an astrolabe's alidade sighting vanes are misaligned during celestial altitude measurement?