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 driving in California, what is the blood alcohol concentration (BAC) limit for someone over the age of 21?

0.02
0.08
0.04
0.10

The correct answer is: 0.08

In California, the legal limit for blood alcohol concentration (BAC) is 0.08 for drivers over the age of 21. This means that if your BAC is 0.08 or higher, you can be charged with a DUI (Driving Under the Influence). It is important to note that even if your BAC is below 0.08, you can still be charged with a DUI if your driving is impaired in any way. The other options listed, such as 0.02, 0.04, and 0.10, are all incorrect and lower or higher than the legal limit. They may apply to other states or jurisdictions, but not to California.