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.

In heavy traffic, when should you use your horn?

To warn drivers in front of you
To express your frustration
To honk at cyclists who are in your way
To greet other drivers

The correct answer is: To warn drivers in front of you

You should use your horn to warn drivers in front of you when traffic is heavy. Honking out of frustration (option B) is not recommended as it does not solve the traffic issue and can potentially escalate the situation. Honking at cyclists (option C) should also be avoided as it can startle them and cause accidents. Greeting other drivers with a horn (option D) is not necessary and can be considered distracting while driving. It is important to use your horn responsibly and only when necessary for safety reasons.