Question 3018 of 229 · California Water Distribution Operator Exam
What is the purpose of a sacrificial anode in cathodic protection?
Exactly one answer is correct.
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Correct answer to question 3018
- D: It corrodes in place of the protected metal
Explanation
A more active metal such as magnesium or zinc gives up electrons to protect steel tanks or pipes. It must be replaced when consumed.
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