Mastering the rules of the road is the first step toward earning your driver’s license. This guide covers 21 of the most critical questions found on the official DMV written exam, focusing on right-of-way, road signs, and safety regulations.
DMV Practice Questions and Answers
1. When approaching an intersection with a flashing red light, what must you do?
Answer: You must come to a complete stop, yield to any traffic and pedestrians, and proceed only when it is safe to do so. Treat it like a stop sign.
2. What is the "Three-Second Rule"?
Answer: It is a safe following distance. You should stay at least three seconds behind the vehicle in front of you to allow enough time to react to sudden stops.
3. In which direction should you turn your wheels when parking uphill next to a curb?
Answer: Turn your front wheels away from the curb (toward the street) and let the vehicle roll back slightly until the rear of the tire touches the curb.
4. What does a solid yellow line next to a broken yellow line mean?
Answer: Passing is permitted only for the side with the broken line. Drivers on the side with the solid line must stay in their lane.
5. When are roads most slippery during a rainstorm?
Answer: During the first few minutes of rainfall, as the water mixes with accumulated oil and dust on the road surface.
6. What should you do if your vehicle begins to hydroplane?
Answer: Take your foot off the gas pedal gradually. Do not hit the brakes. Steer straight and allow the car to slow down until the tires regain traction.
7. Who has the right-of-way at a four-way stop if two vehicles arrive at the same time?
Answer: The driver on the left must yield to the driver on the right.
8. What does a round yellow sign with a black "X" and the letters "RR" indicate?
Answer: It is a circular railroad crossing advance warning sign, indicating there is a railroad crossing ahead.
9. When must you dim your high-beam headlights when approaching an oncoming vehicle?
Answer: You should dim your high beams when an oncoming vehicle is within 500 feet or when following another vehicle within 300 feet.
10. What is the legal Blood Alcohol Concentration (BAC) limit for drivers 21 and older?
Answer: In most states, it is illegal to drive with a BAC of 0.08% or higher.
11. What is the proper procedure for entering a freeway?
Answer: Increase your speed in the acceleration lane to match the flow of traffic, check your mirrors, signal, and merge into a gap when safe.
12. Can you turn right on a red light?
Answer: Yes, unless a sign specifically prohibits it. You must first come to a complete stop and yield to pedestrians and cross-traffic.
13. What should you do if an emergency vehicle with flashing lights is stopped on the shoulder?
Answer: Follow "Move Over" laws: safely move into a lane not adjacent to the vehicle, or slow down significantly if moving lanes is not possible.
14. What does a diamond-shaped orange sign represent?
Answer: This is a construction or maintenance warning sign, indicating road work or changed conditions ahead.
15. When should you use your turn signals?
Answer: You must signal at least 100 feet before turning or changing lanes to alert other drivers of your intentions.
16. What is the meaning of a pentagon-shaped sign?
Answer: A pentagon-shaped (five-sided) sign indicates a school zone or school crossing.
17. How should you react to a "Yield" sign?
Answer: Slow down and be prepared to stop. Let any vehicles, bicyclists, or pedestrians in the intersection or on the connecting road go first.
18. What do double solid white lines between lanes signify?
Answer: Lane changes are prohibited. You must stay in your current lane.
19. What is the correct hand signal for a left turn?
Answer: Extend your left arm straight out the window, parallel to the ground.
20. Where is a driver's "Blind Spot" typically located?
Answer: To the left and right sides of the vehicle, slightly behind the driver’s peripheral vision, where mirrors do not provide a clear view.
21. When a school bus is stopped with its red lights flashing and stop arm extended, what must you do?
Answer: You must stop from either direction until the lights stop flashing and the arm is retracted, unless you are on a divided highway with a physical median.
Conclusion
Reviewing these core DMV questions regularly will help ensure you are prepared for the exam and for safe daily driving. Consistency is key to mastering the written test on your first attempt.

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