United States Permit Test Coach
Warning signsQuestion 65 of 223

What does a NO CENTER LINE sign warn of?

  1. The road has no shoulder
  2. The road has no center line markings
  3. The road has no signs
  4. The road has only one lane
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Correct answer: The road has no center line markings

Without a center line, it is harder to see where your lane ends. Keep to the right and watch for oncoming traffic.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 2C.32 NO CENTER LINE Sign (W8-12), page 216

Practice warning signs

Questions last reviewed: 18 October 2026