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← HistoryWhich mechanical risk increased when a siege tower, using counterweight winches to raise its scaling bridge, approached a castle wall?
A)Cable failure due to creep✓
B)Gear slippage under dynamic load
C)Axle bending from asymmetric force
D)Rope fraying from abrasive friction
💡 Explanation
Creep increases in winch cables because the sustained tension combined with impact loading from castle defenses causes gradual plastic deformation of the metal. Therefore, failure is likely in the cables, rather than instant breakage (overload), gear failure (poor lubrication), or rope fraying (other methods employed).
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