Practice question

What component provides backup timing in older traffic signal cabinets if the main controller fails?

  1. The conflict monitor
  2. The flasher unit combined with the flash transfer relay
  3. The detector amplifier
  4. The power distribution panel

Answer: B — The flasher unit combined with the flash transfer relay

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