United States Permit Test Coach
Warning signsQuestion 46 of 223

What does a BE PREPARED TO STOP sign near a traffic signal warn of?

  1. A signal that is out of order
  2. A school bus that is stopped
  3. A railroad crossing with a gate
  4. Stopped traffic that the signal causes
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Correct answer: Stopped traffic that the signal causes

This sign warns that traffic may be stopped ahead because of the signal. Slow down and watch the vehicles in front of you.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 2C.35 Advance Traffic Control Signs (W3-1, W3-2, W3-3, and W3-4), page 218

Practice warning signs

Questions last reviewed: 18 October 2026