The California DMV written test covers road rules, safe driving, and traffic signs

California's learner's permit test — officially called the written knowledge test — has 36 questions. You need to answer at least 30 correctly to pass. The test covers California traffic laws, road signs, safe driving practices, and what to do in emergency situations. You take it on a computer at a DMV office, and you get your score when ready.

The questions are multiple choice with four answer options each. They're drawn from the California Driver Handbook, which the DMV publishes free online and in print. The test is not adaptive — everyone sees different questions, but all questions come from the same pool and cover the same topics.

You can take the test in English, Spanish, Mandarin, Cantonese, Vietnamese, Korean, or Tagalog. If English is not your strongest language, you can request an interpreter at the DMV office when you schedule your test, though availability varies by location.

Key Takeaways

  • The test has 36 questions, you must answer 30 correctly, and it covers only material in the California Driver Handbook.
  • Questions focus on traffic laws, road signs, right-of-way rules, and what to do in unsafe situations — not on driving skills.
  • You take the test on a computer at a DMV office and receive your score before you leave.
  • The DMV publishes sample questions and a full practice test on its website, and you can retake the written test if you fail.

What topics the test covers

The test breaks into broad categories. About one-third of questions cover traffic signs and their meanings — stop signs, yield signs, speed limit signs, warning signs like "Slippery When Wet," and regulatory signs. You need to know what each sign means and what you must do when you see it.

Another third covers right-of-way rules — who goes first at a four-way stop, what to do when a traffic light is broken, how to handle intersections with no signals, and rules for turning left or right. These questions often describe a specific scenario and ask what you should do.

The remaining third covers safe driving practices and California-specific laws. This includes seat belt rules, child passenger safety, speed limits in different zones, what to do if you see an emergency vehicle, how to handle pedestrians and cyclists, and rules about cell phone use while driving. A few questions cover what to do if you're in an accident or if your vehicle breaks down on the highway.

Sample question types you will see

Here are examples of the kinds of questions on the test. These are not actual test questions, but they show the format and difficulty:

Sign recognition: "You see this sign on the road ahead. What does it mean?" (The sign is a diamond shape with an image of a skidding car.) The answer choices might be: A) Road is slippery, B) Speed limit ahead, C) Curve in road, D) Pedestrian crossing. The correct answer is A.

Right-of-way scenario: "You are driving straight through an intersection on a green light. Another car is turning left from the opposite direction. Who has the right of way?" The answer choices are: A) The car turning left, B) You, C) Both at the same time, D) Whoever honks first. The correct answer is B — you have the right of way when driving straight on a green light.

Safe driving rule: "In California, you can use your cell phone while driving if you use a hands-free device. True or False?" The correct answer is False — California law prohibits handheld cell phone use while driving, even at a red light, and restricts hands-free use for drivers under 18.

Where to find official practice materials

The DMV website offers free resources. The California Driver Handbook is available as a PDF or in print at any DMV office. It contains all the information tested on the written exam.

The DMV also publishes a sample test with 36 questions on its website. This sample test uses the same format and covers the same topics as the real test. Taking it gives you a realistic sense of what to expect and how much time you'll need.

You can also request a printed copy of sample test questions at the DMV office when you go to schedule your test. Some DMV offices have computers available where you can practice the sample test before your appointment.

Third-party websites and apps offer practice tests too, but verify that they use current California law. Traffic laws change, and outdated practice materials can teach you incorrect information. Stick with the official DMV handbook and sample test if you're unsure.

How to prepare and what to bring

Most people study the California Driver Handbook for a few days or a week before taking the test. Read through it once, then focus on the sections that confuse you. Take the sample test to see which topics you need to review more.

When you go to the DMV office to take the test, bring your learner's permit process receipt (if you haven't received your permit yet) or your current ID. You'll also need to bring proof of residency and your Social Security number or ITIN. The DMV staff will tell you exactly what documents you need when you schedule your test appointment.

Arrive at least 15 minutes early. The DMV will verify your identity, check that you meet the age and residency requirements, and then take you to a computer station. You'll have up to one hour to complete the 36 questions, though most people finish in 20 to 30 minutes.

What happens if you fail and retake options

If you score below 30 out of 36, you fail and do not receive your learner's permit. You can retake the test the same day or schedule another appointment for a later date. There is no waiting period between attempts in California, though some DMV offices may have a short delay to process your results.

Each time you retake the test, you see different questions from the same pool. The format and topics stay the same. Most people who fail the first time pass on the second attempt after reviewing the handbook again and focusing on the topics they missed.

You can retake the test as many times as you need. There is no limit on the number of attempts, and each attempt costs the same fee as the first test.

Frequently Asked Questions

Can I use the sample test questions to study?

Yes. The DMV sample test is designed for studying and uses the same format as the real test. Taking it multiple times helps you learn the material and get comfortable with the computer format. The real test draws from a larger pool of questions, so you won't see the exact same questions on test day, but the topics and difficulty level are the same.

What if I don't speak English well?

You can take the test in Spanish, Mandarin, Cantonese, Vietnamese, Korean, or Tagalog. Call your local DMV office to request an interpreter when you schedule your appointment. Some offices have interpreters available; others may need advance notice. The test content is the same regardless of language.

How long does the test take?

You have up to one hour, but most people finish in 20 to 30 minutes. There's no penalty for finishing early. You can review your answers before submitting if you finish with time left.

Do I need to memorize all the traffic signs?

You need to know the most common signs — stop, yield, speed limit, pedestrian crossing, and warning signs like "Slippery When Wet" and "Curve Ahead." The test focuses on signs you'll actually encounter while driving. The California Driver Handbook shows all the signs and what they mean, so study those pages carefully.

What if I pass the written test but fail the driving test later?

The written test and driving test are separate. Passing the written test gives you your learner's permit, which lets you practice driving with a licensed adult. You can take the driving test whenever you feel ready, and you can retake it if you fail. Failing the driving test does not affect your learner's permit.