California Driver License (DMV) Written Practice Test

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Study for the California DMV Driver License Test with a comprehensive quiz that includes multiple-choice questions designed to help you master the essential road rules and regulations. Prepare effectively and confidently for your exam!

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 "X" signal above a lane indicate?

  1. Proceed with caution.

  2. Merge into the lane indicated.

  3. Lane change not permitted.

  4. Yield the right-of-way to other vehicles.

The correct answer is: Lane change not permitted.

A red "X" signal above a lane indicates that a lane change is not permitted. This signal is a clear directive to drivers that they should not use that lane, typically due to restrictions related to traffic conditions, safety concerns, or roadway configuration. For example, this might be seen in construction zones or other situations where it is essential to keep that lane clear for safety reasons. When the lane has a red "X," it serves to prevent misunderstandings and ensure that drivers are aware of the restrictions in place, contributing to the overall safety and efficiency of road use. Acknowledging and adhering to this indication helps navigate traffic more effectively and avoids potential collisions that could occur if drivers were to disregard the signal.