Marine Electrical Systems USCG Q#986 (Set 33)

In an impressed current cathodic hull protection system, what statement is true concerning the composition and arrangement of the anodes?

Official USCG Answer & Rule Citation

Correct Answer: Option C — The protective anodes are made of lead or platinized titanium and are electrically insulated from the hull.

Impressed current cathodic protection systems utilize non-consumable anodes constructed from lead-silver or platinized titanium. Per IEEE 45 guidelines, these anodes must be electrically insulated from the steel hull to prevent localized high-density current flow and severe structural plate damage.

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