Which risk increased for Inca stonemasons when shaping irregular granite blocks?

💡 Explanation

Stress concentration increased the risk of brittle fracture when shaping because micro-cracks propagated from applied force, therefore causing premature failure, rather than uniform material removal achieved under ideal conditions with modern tooling.

• Which risk increases when laying Roman roads across areas high in organic matter like swamps?
• Which outcome results when inadequately fired ceramic bricks experience prolonged exposure to groundwater?
• Which outcome results when inadequate slope exists within Mughal garden water channels?
• Which structural weakness frequently undermined Roman siege ramp ("agger") construction against fortified cities?
• Which limitation constrained medieval Islamic scholars to approximate solutions in geometric algebra?
• Which outcome occurs when gabions saturate during siege?