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← HistoryGiven the limitations of early cast iron production, which risk significantly increased when building larger repeating crossbow magazines in ancient China?
A)Faster string wear
B)Reduced firing accuracy
C)Catastrophic brittle fracture✓
D)Trigger mechanism jamming
💡 Explanation
Larger magazines required more cast iron, with increased probability of flaws and inclusions triggering brittle fracture, because the production lacked modern quality controls. Therefore, structural failure was more probable, rather than simple wear or jamming, under increasing stress.
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