Question 5007 of 229 · California Water Distribution Operator Exam
Which is the main reason to keep mains and service lines of dissimilar metals separated by dielectric fittings?
Exactly one answer is correct.
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Correct answer to question 5007
- A: To prevent galvanic corrosion
Explanation
Different metals in contact with water form a galvanic cell where the more active metal corrodes. Dielectric unions break the electrical path.
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