Question 1079 of 731 · Texas Journeyman Electrician Exam
A diagram that uses a single line to represent a three-phase circuit and shows the service, feeders, transformers and panels is called:
Exactly one answer is correct.
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Correct answer to question 1079
- D: A one-line diagram
Explanation
A one-line (single-line) diagram shows the power distribution system with one line per circuit regardless of the number of conductors. It is used to see the overall system at a glance.
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