Driver's Prep - Free DMV tests

Free DMV Practice Tests for District of Columbia

District of Columbia DMV Knowledge Test – Quick Facts

What You Should Know
  Number of questions on exam: 25 (non-GRAD)
30 (GRAD)
  Passing score: 80 percent
  Correct answers to pass: 20 (non-GRAD)
24 (GRAD)
  Allotted time to complete test: 60 min. (non-GRAD)
75 min. (GRAD)
  Wait time before retest: 3 days


This Practice Test
  Number of questions on each practice test: 25
  Question pool: 500+
  Each test is random



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#1. What does a solid white line between lanes mean?

A broken white line between lanes of traffic indicates a driver may cross the line to change lanes, but only if it is safe. A solid white line between lanes of traffic means that a driver should stay within the lane.

As an example, the solid painted lines that divide the entrance and the interstate should not be crossed.


#2. Which is the background color on a road sign like this?

Green and white are used on mileposts.

Green and white signs are used for guide information, such as distance or direction.


#3. Which car or cars are not driving in the truck's blind spots?

The blue (C) car. Marked areas are the driver’s blind spots.

Trucks have large blind spots, up to 20 feet in front of the cab, on either side of the tractor trailer, particularly along the sides of the cab, and up to 200 feet in the rear.


#4. If your gas pedal sticks, it is wrong to:

If your accelerator pedal sticks shift to neutral, apply the brakes, and pull off the roadway and stop.

Never turn your vehicle’s ignition to the lock position while the vehicle is still in motion. This will cause the steering to lock and if you try to turn the steering wheel you will lose control of the vehicle.


#5. You must obey signals and directions from school crossing guards:

You must always obey their directions.


#6. What does this sign mean?

T-Intersection Ahead.

The roadway ends ahead. Slow down and prepare to stop or yield before turning.


#7. What is true about tailgating (following another vehicle too closely)?

Most rear-end collisions are caused by following too closely.


#8. To prevent skidding on slippery surfaces, you should:

To prevent skidding on slippery surfaces you should adjust your speed, avoid abrupt changes in speed or direction, and slow down well in advance of the stopping point.


#9. This sign means:

Cross road. Another road crosses the highway ahead. Be alert for cross traffic and regulatory signs or signals.


#10. What does a sign with a white diamond symbol usually indicate?

A diamond-shaped marking shows that a lane is reserved for high occupancy vehicles. The sign means the lane or lanes indicated are reserved for buses and vehicles with the minimum number of occupants specified on the sign.


#11. When is it wrong to use your horn?

Remember, you may use your horn when it is reasonably necessary to avoid collisions.

Do not use your horn to alert a bicyclist of your approach in a non-emergency situation. A loud horn can cause a bicyclist to lose control.

This question asked when you should NOT use your horn.


#12. How is your driving record affected if you drive for a full calendar year without obtaining pointable moving violations?

If you maintain a valid DC driver license for a full calendar year without obtaining pointable moving violations, you may be eligible to receive a Good Point on your driving record.


#13. Signaling before turning is:

Signaling is required by law.


#14. When you approach a railroad crossing without warning signals, stop signs or crossing gates:

You must yield to train traffic. Trains cannot stop quickly. Trains are always moving much faster than they appear from a distance so drivers should never try to beat one.


#15. This sign added to a stop sign means:

This sign means there are four stop signs at the intersection. Traffic from all directions must stop. The first driver to stop is the first driver to go. Other drivers must wait their turn.


#16. When driving on slick roads, you should:

Reduce your speed and increase your following distance. Avoid abrupt changes in speed or direction. Slow down well in advance of the stopping point.


#17. When driving inside a roundabout, it is wrong to:

Do not change lanes in the roundabout. Vehicles exit the roundabout by making a simple right turn onto the desired street or highway. If you are in an inside lane, watch out for traffic crossing in front of you on the roundabout, especially those vehicles intending to leave at the next exit.

This question asked what you should not do.


#18. When you drive through a construction zone, you should:

When approaching or driving through a work zone stay alert for changing traffic patterns and slowing or stopped traffic. Pay close attention to traffic signs and other devices. Be alert for unusual pavement surface conditions, workers, and equipment.


#19. You can drive off the roadway onto the shoulder to pass another vehicle on the right:

You cannot drive on the shoulder of the road to pass another vehicle. You must stay on the traveled portion of the road.


#20. Backing a vehicle on interstates:

Do not back up on any highway, under any circumstances.


#21. When you park and leave your car, you must:

When parking and leaving your vehicle on a highway or a street, you must stop the engine, lock the ignition, remove the key, and set the parking brake. It is also advisable to raise the windows and lock the doors


#22. When you want to make a right turn at an intersection with a steady red light, you should:

You may turn right at a red signal after coming to a complete stop, unless there are signs posted at the intersection, which reads: no turn on red.

You must use a turn signal continuously for at least 100 feet before turning.


#23. The following practices are not recommended while driving. Which is also illegal for all drivers?

A person may not wear earplugs, a headset, or earphones attached to a radio, tape player, CD player or other audio device while driving a motor vehicle.

Use of earphones or earplugs for cellular phones are acceptable.

Hearing aid devices are also acceptable.


#24. What is a good advice to fight off highway hypnosis or avoid getting tired on a long trip?

To overcome highway hypnosis, try to stay alert. Keep shifting your eyes from one area of the roadway to another, near and far left and right. Avoid staring directly in front of your car. Talk to your companion or listen to the radio. Keep the interior of the car as cool as possible.

At the first sign of drowsiness, pull off the highway and either take a nap, stretch a bit, take a break, or, if possible, change drivers.

Do not depend on stay-awake drugs. They are apt to make your driving even more hazardous.


#25. If you are being tailgated on a two-lane two-way road, you should:

If a vehicle follows too closely and there is a right lane, move over to the right. If there is no right lane, slow down and let the vehicle pass.

Never brake hard to discourage a tailgater. Slow down gradually, not suddenly.

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District of Columbia DMV Sample and Practice Tests

This 25-question sample test addresses the non-grad knowledge test, which includes all questions about road signs, traffic signals, D.C. traffic rules, safe driving, and common courtesy on the road.

The official 30-question GRAD test contains additional questions about the graduated licensing program. If you are under 21 years and must completed the graduated licensing steps, you must pass the 30-question test. You can find an example of this test at – DMV Practice Test for Permit or check your knowledge of the D.C. graduated licensing program here

Each Sample Test is Random

Each driver’s license and learner’s permit test at Driver’s prep has 25 random questions drawn from a larger pool of questions. This means that every test is different and that you are likely to see new questions when you restart the test.

After each question, you will get instant feedback. If your answer is incorrect, there is also a brief comment that explains the correct answer. Remember that all answers on the official examination is found in the D.C. Driver’s Manual.

The passing score in District of Columbia is 80 percent, which means you must answer at least 20 of these 25 DMV questions correctly. Aim a little higher when you are studying and preparing for the exam. You have a much better chance of passing the examination, if you can reach a score of 100%.

You Should Always Read the D.C. Driver’s Manual

Studying the D.C. Driver’s Manual is a must for successfully passing the driver knowledge test.

You can get a PDF-version of the manual online from or from your local Service office .

Always start by reading the manual. Then, use these practice tests to check how much you have learned and if you are ready for the real exam or not.

Don’t use the practice tests instead of the manual, even if friends and some less committed websites suggest such a strategy. The best way to learn is to put the rules of the road in a context and not simply try to memorize questions and answers.

Learn more about How to Study for the driver test.

We help you pass your DMV exam

Who Must Pass the District of Columbia Driver’s License Test?

  If you never been licensed before, you must always pass the written knowledge test.

  In District of Columbia, foreign Nationals with a valid out-of-country or out-of-state driver license must also pass the knowledge examination.

  If you have a DC driver license and let it expire for more than 90 days, you must take the knowledge examination again. Should you let your license expire for more than 180 days, you must take and pass both the knowledge test and the road test.

  When DMV has revoked your driver’s license and you want it back, you must apply for a new license and take all necessary tests again.

Driver's License - District of Columbia

Things to Know about the Knowledge Examination

The driver examination checks your knowledge of traffic laws, road signs, and driving safety rules. The knowledge test will show if you can drive a vehicle in accordance with D.C. law.

The knowledge test consists of several highway signs. The DMV examiner will also check to see if you pay attention to the signs during the driving test. This is why you should learn all common highway signs and know how to act when you see one.

District of Columbia - DMV Test Questions


You can take the driver license knowledge examination at any DMV service center. There is no need for and appointment, DMV offers all testing on a walk-in basis. Tests are available in the following languages: Amharic, Arabic, Cantonese, English, French, German, Japanese, Korean, Mandarin, Portuguese, Russian, Spanish, Tagalog, Thai, and Vietnamese.

If you need help with reading, you can get an audio assisted test. Ask for a headset before you take the exam.

If you fail the official knowledge test, you must wait at least 72 hours (3 days) before you can take it again on the 4th day.

Should you fail your knowledge test six (6) consecutive times, you must wait one year from the date you failed the first test.

You must pay a new testing fee each time you take the knowledge test. So, it is a good idea to try to pass it the first time by preparing well.

If you are under 21 years and follow the graduated licensing steps, the official knowledge test has 30 questions. If you are 21 years or older, the test has 25 questions.

The passing score is 80%. On the GRAD test with 30 questions, you must correctly answer 24 questions. On the 25-question test for applicants over 21 years, you must correctly answer 20 questions.

You must wait at least 3 days and can retake the test on the 4th day.

COVID-19 Alerts

COVID-19 Safety Information

All Service Centers are operating on an “Appointment Only” basis. this includes knowledge tests and road skills tests.

Customers can schedule an appointment online , or by calling 311 or (202) 737-4404.

All documents expiring on and after March 1 are extended until 45 days after the public health emergency concludes, including:

  • driver licenses (renewals and first-time licenses)
  • learner permits
  • non-driver identification cards (renewals and first-time IDs)
  • vehicle registrations (renewals and first-time registrations)
  • inspections
  • ticket payments
  • ticket adjudication responses

All driver licenses, vehicle registrations, and vehicle inspections scheduled to expire have been granted a waiver without penalty until DC DMV reopens at full operating capacity.


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