Practice question

What is the MUTCD requirement for the sequence of signal indications in a standard three-section vertical signal head from top to bottom?

  1. Green on top, yellow in middle, red on bottom
  2. Red on top, yellow in middle, green on bottom
  3. Yellow on top, red in middle, green on bottom
  4. Any order is acceptable

Answer: B — Red on top, yellow in middle, green on bottom

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