2026 California DMV Class C Written Knowledge Exam.

This is a comprehensive practice test designed for the 2026 California DMV Class C Written Knowledge Exam.

These questions are chosen to cover the most frequently missed topics, including recent legislative updates and specific California vehicle codes that are heavily emphasized in the 2026 Driver Handbook.

🚨 SECTION 1: CRITICAL RIGHT-OF-WAY & INTERSECTIONS
Q1. You approach an intersection with a flashing red traffic light. What must you do? A: Treat it exactly like a Stop sign. Come to a complete stop, look both ways, and yield to right-of-way traffic and pedestrians before proceeding.

Q2. You are at a green traffic light, but traffic on the other side of the intersection is backed up and blocking your path. Should you enter the intersection? A: No. Do not enter an intersection if you cannot get completely across before the light turns red. You could get a ticket for blocking the intersection ("gridlock").

Q3. When a pedestrian is crossing the street in an unmarked crosswalk at a corner, you must: A: Yield the right-of-way to the pedestrian. All street corners are considered crosswalks, whether marked or not.

Q4. Two vehicles arrive at an uncontrolled four-way stop at the same time. Who has the right-of-way? A: The vehicle on the right has the right-of-way.

Q5. What does a solid red arrow signal mean? A: Stop. You are not allowed to turn in the direction of the arrow until a green signal or green arrow appears. (Unlike a circular red light, you cannot turn right on a red arrow).

Q6. You arrive at a "T" intersection without Stop or Yield signs. You are on the road that ends. Who must yield? A: You must yield to traffic and pedestrians on the through road.

🛣️ SECTION 2: PAVEMENT MARKINGS & LANES
Q7. What does a center lane marked by solid yellow lines on the outside and broken yellow lines on the inside indicate? A: A center left-turn lane. It may only be used for making left turns or U-turns (where permitted), not for passing or driving more than 200 feet.

Q8. You see white diamond markings painted on the pavement of the far left lane. What does this mean? A: It is a High-Occupancy Vehicle (HOV) or "carpool" lane, reserved for vehicles with a specific number of occupants or specific clean-air decals during posted hours.

Q9. Two sets of solid double yellow lines that are two or more feet apart are considered: A: A barrier. Do not drive on or over this barrier, make a left turn, or make a U-turn across it, except at designated openings.

Q10. What do broken white lines on the roadway mean? A: They separate traffic lanes going in the same direction. You may cross these lines to change lanes when it is safe to do so.

Q11. A painted red curb indicates: A: No stopping, standing, or parking at any time (bus exceptions exist in some zones).

🚗 SECTION 3: SPEED LAWS & SAFE DRIVING
Q12. Explain California’s "Basic Speed Law." A: You may never drive faster than is safe for current conditions (weather, traffic, road surface), regardless of the posted speed limit.

Q13. When driving within 500 to 1,000 feet of a school while children are present, the speed limit is usually: A: 25 mph, unless otherwise posted (some zones are as low as 15 mph).

Q14. Unless otherwise posted, what is the speed limit in a business or residential district? A: 25 mph.

Q15. How much distance are you legally required to give a bicyclist when passing them? A: At least 3 feet. If 3 feet is not possible, you must slow down and wait until it is safe to pass without endangering the cyclist.

Q16. When merging onto a freeway, you should: A: Enter at or near the speed of traffic. Do not stop in the acceleration lane unless absolutely necessary.

Q17. You are driving in the far left lane of a multi-lane freeway and five cars are following close behind you, wanting to pass. What should you do? A: Move to the lane to your right when it is safe to do so, even if you are driving at the speed limit. Impeding the flow of traffic is illegal.

⚖️ SECTION 4: ALCOHOL, DRUGS & THE LAW
Q18. It is illegal for a person 21 years of age or older to drive with a Blood Alcohol Concentration (BAC) of: A: 0.08% or higher.

Q19. Under California’s "Zero Tolerance Law," it is illegal for a person under 21 to drive with a BAC of: A: 0.01% or higher.

Q20. What does California's "Implied Consent" law mean? A: By driving in California, you have agreed to submit to chemical testing (breath, blood, or urine) to determine the alcohol or drug content of your blood if arrested for DUI. Refusal will result in license suspension.

Q21. Can you be convicted of DUI for driving under the influence of prescription medications? A: Yes. If a prescription drug (or over-the-counter drug) impairs your ability to drive safely, you can be charged with DUI.

Q22. Regarding cannabis (marijuana) use in a vehicle: A: It is illegal to drive while under the influence of cannabis. It is also illegal to smoke or ingest cannabis while driving or riding as a passenger, and it is illegal to have an open container of cannabis in the vehicle.

📱 SECTION 5: SPECIAL CALIFORNIA RULES & SITUATIONS
Q23. When is it legal for a driver over 18 to use a handheld wireless telephone while driving? A: Only during an emergency call to law enforcement, a medical provider, the fire department, or other emergency services. Otherwise, it must be hands-free.

Q24. Can a driver under the age of 18 use a hands-free device (like Bluetooth) to talk on the phone while driving? A: No. Drivers under 18 are prohibited from using any electronic wireless communications device to write, send, or read a text-based communication, or to call, even if it is hands-free.

Q25. You are approaching an emergency vehicle, tow truck, or Caltrans vehicle stopped on the shoulder with its amber or red flashing lights on. What must you do under the "Move Over" law? A: You must move to a lane not immediately adjacent to the stopped vehicle if it is safe to do so. If you cannot move over, you must slow down to a reasonable and safe speed.

Q26. When you see a transit bus (city bus) at a bus stop has turned on its left turn signal to re-enter traffic, you must: A: Yield the right-of-way to the bus.

Q27. You must use your headlights: A: From 30 minutes after sunset to 30 minutes before sunrise, and whenever visibility is insufficient to see 1,000 feet ahead. Crucial Rule: If you need to use your windshield wipers due to rain or fog, you must also have your low-beam headlights on.

Q28. How far before turning or changing lanes must you signal? A: At least 100 feet.

Q29. When parking your vehicle facing downhill on a street with a curb, you should turn your wheels: A: Toward the curb.

Q30. You are driving on a multi-lane highway and large trucks are present. Why should you avoid driving directly to the right of a large truck? A: You will be in the truck's largest blind spot (the "No Zone"), where the driver cannot see you.
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