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Practice quizzes / IMSA Signal Construction Practice Questions - IMSA Traffic Signal Construction Technician Level II Certification Exam Exam / Question 102643
Practice question

What is the typical service voltage provided to a traffic signal controller cabinet?

  1. 12 VDC
  2. 48 VDC
  3. 120/240 VAC single-phase
  4. 480 VAC three-phase

Answer: C — 120/240 VAC single-phase

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