Question 7018 of 749 · Maryland Journeyperson Electrician Exam
Three-way and four-way switches must be wired so that switching is done in which conductor?
Exactly one answer is correct.
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Correct answer to question 7018
- A: Only the ungrounded conductor
Explanation
Section 404.2(A) requires three-way and four-way switches to be wired so all switching is in the ungrounded circuit conductor. Where wiring is in metal raceways or enclosures, the circuit conductors must also be grouped together.
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