Question 6023 of 749 · Maryland Journeyperson Electrician Exam
Expansion fittings are required in a run of PVC conduit where the expected length change due to temperature is at least
Exactly one answer is correct.
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Correct answer to question 6023
- C: 1/4 in
Explanation
PVC expands and contracts with temperature much more than metal. Expansion fittings are required where the expected length change is 1/4 in or greater in a straight run between securely mounted items. See 352.44.
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