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← TechnologyWhich risk develops when dissimilar metals contact bridge columns?
A)Accelerated galvanic corrosion occurs✓
B)Resonant harmonic amplification begins
C)Ablative material degradation speeds
D)Cryogenic embrittlement propagates quickly
💡 Explanation
When dissimilar metals are coupled, galvanic corrosion happens because the electrochemical potential difference drives a redox reaction known as electron transfer, therefore accelerating material loss, rather than other forms of degradation independent of the contact.
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