Question 461Electricity & Electronics - Assistant Engineer

The correct answer is C) The protective anodes are made of lead or platinized titanium and are electrically insulated from the hull. In an impressed current cathodic hull protection system, the anodes are typically made of materials that are more electrochemically active than the hull material, such as lead or platinized titanium. These anodes are intentionally electrically insulated from the hull in order to create a potential difference that drives the cathodic protection current to flow from the anodes to the hull, protecting the hull from corrosion. The other options are incorrect because zinc anodes would not be suitable for an impressed current system (option A), and the anodes should be electrically insulated from the hull, not bonded to it (options B and D).