California Driver License (DMV) Written Practice Test

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Ace your California DMV written test! Prepare for the exam by practicing hundreds of multiple-choice questions covering traffic laws and road signs. Boost your knowledge, gain confidence, and increase your chances of passing the test on your first try.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What does a red circle sign with a white horizontal line indicate?

Stop sign ahead.
Railway crossing ahead.
School zone ahead.
No entry or do not enter.

The correct answer is: No entry or do not enter.

The red circle sign with a white horizontal line is a universally recognized symbol indicating "No entry" or "Do not enter." This sign is used to inform drivers that they are approaching an area where entry is prohibited for all vehicles. It serves a critical safety function, particularly at locations such as one-way streets or restricted zones where vehicle access is limited. In terms of functionality, this sign effectively communicates to drivers that they must refrain from proceeding in the direction indicated by the sign, helping to prevent potential accidents and ensuring proper traffic flow. Awareness of this sign is essential for drivers to navigate roads safely and comply with traffic regulations.