Which limitation significantly hampered Qin dynasty crossbow effectiveness?

💡 Explanation

The metallurgical variability in the cast iron affected crossbow lock consistency, because differential cooling rates caused unpredictable internal stresses. Therefore, crossbow power varied shot-to-shot due to inconsistent trigger release, rather than solely inaccuracy, rifling issues, or sear strength.

• Which outcome occurs in Mughal pietra dura inlay when excessive soluble salt crystallization occurs within a humid environment?
• Which consequence resulted when Inca agricultural terraces exceeded wall stability limits?
• Which instability risk increased in Roman ballistae when using lower-density projectile stones during sieges?
• Which outcome predictably follows the loss of evaporative cooling in a Mughal garden's reflecting pool during peak summer?
• Which outcome occurs when a Viking longship encounters a beam reach relative to its sail rigging?
• Which outcome arises when fluctuating temperatures affect 'pietra dura' inlay within a Mughal-era monument?