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← HistoryWhich outcome results when dissimilar metals contact below a ship’s waterline?
A)Increased cathodic protection efficiency
B)Accelerated galvanic corrosion occurs✓
C)Reduced hull frictional resistance
D)Formation of passive oxide layer
💡 Explanation
Galvanic corrosion accelerates because the electrochemical potential difference drives ion transfer, pitting the less noble metal; therefore, corrosion occurs, rather than cathodic protection or oxide layer formation, due to the conductive seawater.
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