Practice question

Per NMDOT 2019 702.2.3.1, the Caution operating mode of a sequential arrow display uses which lamp pattern?

  1. A single lamp at the center of the panel
  2. Four lamps, one at each corner of the panel
  3. Three chevrons sequencing right-to-left
  4. A flashing arrow using every lamp on the panel

Answer: B — Four lamps, one at each corner of the panel

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