Practice question

What should a technician do FIRST before opening a traffic signal cabinet for maintenance?

  1. Check the signal timing plan
  2. Call dispatch and verify the work order
  3. Set up proper traffic control and work zone safety devices
  4. Test the conflict monitor

Answer: C — Set up proper traffic control and work zone safety devices

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Practice more: IMSA Traffic Signal I Practice Questions - IMSA Traffic Signal Technician Level I Certification Exam Exam →