Texas Driver's License Knowledge TestTraffic Signs and SignalsMedium

A driver is merging onto a freeway from an acceleration lane. They notice a large white sign with a red circle and a diagonal line through it, over the image of a car. What does this sign indicate?

  1. ANo U-turn allowed.
  2. BNo vehicles allowed.
  3. CNo passing zone.
  4. DDo not enter.
Show answer & explanation

Correct answer: B. No vehicles allowed.

A white sign with a red circle and a diagonal line through it generally indicates 'NO' to whatever image is inside the circle. If the image is a car, it means 'No Vehicles Allowed', often seen restricting certain types of traffic or entry points.

Why the other options are wrong

  • A. A 'No U-turn' sign typically shows a U-turn arrow with the red circle and line.
  • C. A 'No Passing Zone' is usually indicated by a pennant-shaped yellow sign or pavement markings.
  • D. A 'Do Not Enter' sign is a red square with a white horizontal bar.

Regulatory Signs (Prohibitory)

Regulatory signs that prohibit certain actions or vehicle types typically use a red circle with a diagonal line over a black symbol on a white background.

  • Red circle with diagonal line means 'NO' or 'PROHIBITED'.
  • The symbol inside the circle indicates what is prohibited.
  • Examples include 'No U-Turn', 'No Right Turn', 'No Bicycles', 'No Trucks', 'No Vehicles'.
  • These signs are critical for traffic flow and safety regulations.

Memory trick: Red circle with a slash, means 'NO' fast, or 'NO' slow, just don't go!

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