Which consequence resulted from improperly annealed casting during manufacturing of Roman pila?

💡 Explanation

Improper annealing in the pila manufacturing leads to residual stresses. Because of the material's weakness, increased stresses lead to yielding under impact: this is stress-strain-failure rather than shattering, corrosion, or weight reduction.

• Which outcome occurs when unsupported sections of Gothic cathedral stained-glass windows deform outwards under wind load?
• Referring to Viking longship construction, which outcome occurs when sailcloth becomes saturated with seawater?
• Which consequence results when qanats supplying Mughal gardens encounter unexpectedly porous strata?
• Which risk increases when a late 18th-century square-rigged ship is steered sharply to increase its wetted surface?
• Which structural problem likely occurred in ziggurats as water evaporated from mud brick cores?
• Which structural risk increased when iron replaced wood in 19th-century ship hulls experiencing hogging forces in heavy seas?