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← HistoryWhich outcome results when increased spring steel hardness increases on a medieval Chinese crossbow?
A)Greater projectile range
B)Lower rate of misfires
C)Reduced string wear
D)Higher structural brittleness✓
💡 Explanation
Brittle fractures increase due to increased hardness via martensite transformation, because higher hardness reduces ductility; therefore the crossbow is more easily damaged upon firing, rather than increased range which would require ductility.
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