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 are you allowed to use your vehicle's horn?

To alert other drivers of your presence.
To express frustration or anger.
To greet a friend or acquaintance.
Only in emergencies to avoid a collision.

The correct answer is: Only in emergencies to avoid a collision.

Using your car's horn to express frustration or anger, greet a friend, or simply to make noise is not considered appropriate use of the horn. It can be distracting and potentially cause confusion or annoyance to other drivers on the road. The horn should only be used in emergency situations, such as alerting another driver of a potential collision, to ensure the safety of yourself and others.