California ICC UST Inspector Practice Exam

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Prepare for the California ICC UST Inspector Exam with our quiz. Explore flashcards, multiple-choice questions, with hints and explanations for each question. Ace your exam with ease!

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How frequently must impressed-current cathodic protection systems be inspected?

10 days
30 days
60 days
90 days

The correct answer is: 60 days

Impressed-current cathodic protection systems are critical for preventing corrosion on underground storage tanks and other metallic structures. The requirement for inspecting these systems at specific intervals is essential because the impressed-current system relies on a continuous flow of electrical current to protect the metal from corrosion. Regular inspections ensure that the system is functioning correctly and that there is enough current being applied to the structure. This is important because changes in current levels can significantly affect the effectiveness of the cathodic protection system, potentially allowing corrosion to occur if the system is not maintained. According to regulatory and industry standards, inspecting impressed-current cathodic protection systems every 60 days provides sufficient oversight to detect any issues with the current output or system integrity before they can lead to significant corrosion or failure. This frequency allows for timely adjustments or maintenance to be made, ensuring ongoing protection of the storage tanks.