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 should you do if you are driving in heavy rain or fog?

Increase your speed to reach your destination faster.
Use your high beam headlights for better visibility.
Reduce your speed and use your low beam headlights.
Follow closely behind the vehicle in front of you.

The correct answer is: Reduce your speed and use your low beam headlights.

When driving in heavy rain or fog, it is important to reduce your speed and use your low beam headlights. This is because high beams reflect off of precipitation particles and can cause glare, reducing your visibility even further. Increasing your speed to reach your destination faster can also make it harder to control your vehicle and react to potential hazards. Following closely behind another vehicle can also be dangerous as it limits your ability to brake or swerve in case of an emergency.