Which consequence resulted from using quicklime to heat castle walls during Roman sieges?

💡 Explanation

Heating walls using quicklime caused structural collapse because thermal expansion created internal stress; the Thermal Stress mechanism targets weak points in the Roman arches. This weakened key components of the wall's load-bearing rather than affecting external siege engines, therefore B is correct.

• Which circumstance most endangers the function of Trajan's Aqueduct?
• Which risk increased when 18th century shipwrights rapidly expanded shipbuilding using unseasoned timber?
• Which outcome during a drought decreases water flow rates within a historic Mughal garden's canal system?
• Which mechanism allowed pre-industrial water wheels to efficiently grind grain using a limited water supply?
• Which outcome occurred when cast iron crossbow triggers experienced repeated stress?
• Which structural failure becomes more probable when terraced hillsides experience prolonged water saturation?