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.

When should you use your horn?

When another driver is going too slow
When another driver is following too closely
When signaling another driver
All of the above

The correct answer is: All of the above

Horns should be used as a warning signal to other drivers in certain situations. Using it when another driver is going too slow or following too closely can alert them to your presence and potentially prevent an accident. Similarly, signaling to another driver with your horn can be helpful in avoiding miscommunications on the road. Therefore, using your horn in any of these situations is appropriate and can promote safe driving practices. Option D is the most comprehensive answer as it encompasses all three appropriate uses of a car horn.