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← HistoryWhich error arises from mechanical shock events experienced by marine chronometers during 18th-century sea voyages?
A)Cumulative error owing to balance spring deformation✓
B)Sudden rate change from lubrication breakdown
C)Positional error due to magnetic interference
D)Complete stoppage of the mainspring mechanism
💡 Explanation
When a chronometer experiences mechanical shocks, cumulative errors arise because the balance spring undergoes microscopic plastic deformation, altering its elasticity which affects timing. Therefore cumulative error results, rather than other errors due to lubrication breakdown, positional influence, or complete failure, which require different triggers.
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