District of Columbia DC DMV Permit Practice Test 37
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age16 years
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1. After a crash your door will not open and you need to get out of the car. What should you try?
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Answer B: Try another door of the vehicle, or a window that will still open properly
A jammed door is common after an impact, and the simplest escape is a different door or a window rather than forcing the damaged one.
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2. Where in the District is riding a bicycle on the sidewalk prohibited?
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Answer B: In the central business district
Sidewalk cycling is allowed across the District except within the central business district, and riders must always yield to pedestrians.
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3. You are passing a line of slow traffic in the lane beside you and you notice a gap in that line ahead. What should you expect?
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Answer A: A vehicle may pull out of that gap into your lane
A gap in a slow line is an invitation to any driver waiting to turn out of a side street or to change lanes, and they are looking at the gap rather than at you.
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4. Where is the safest place for children under 13 to ride?
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Answer C: In the back seat
The back seat keeps children away from the force of a deploying front air bag and is farther from the most common impact area, which is why it is recommended through at least age 12.
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5. What alcohol level applies to a DC driver who is under 21?
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Answer A: Any measurable amount of alcohol
For a driver under 21, DC law treats any measurable amount of alcohol in blood, urine or breath as the threshold.
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6. You are turning right on a red light where that is permitted. What does the law require first?
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Answer B: A full stop, then yielding to traffic and pedestrians
A right turn on red is allowed only after stopping completely and giving way to everyone who has the green, including people in the crosswalk.
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7. May you stop in a marked bicycle lane to let a passenger out?
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Answer B: No, stopping there forces riders into the traffic lane
A vehicle stopped in a bike lane pushes riders out into moving traffic, which is exactly what the lane exists to prevent.
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8. How long must a driver stay in the DC Intelligent Speed Assistance Program after a first conviction requiring enrolment?
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Answer D: One year
The DC Intelligent Speed Assistance Program runs one year for a first conviction, two years for a second and three for a third or subsequent one.
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9. How can you tell that a child safety seat is installed tightly enough?
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Answer C: It moves less than an inch side to side or front to back at the belt path
A correctly installed seat is nearly immovable where the belt or lower anchors pass through it. Excess movement lets the child's body travel farther in a crash.
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10. A tractor-trailer is backing slowly across the roadway to enter a loading dock. What should you do?
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Answer C: Stop and wait until the truck has finished the maneuver
A backing truck driver has a very limited view and the trailer can swing unexpectedly. Trying to squeeze past in either direction risks being crushed.
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11. How does DC law treat a driver's refusal to submit to a chemical test at a later hearing or trial?
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Answer A: The refusal is admissible in evidence
DC law makes evidence of the refusal admissible in any civil or criminal proceeding arising from the conduct alleged before the arrest.
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12. The gates at a railroad crossing begin to come down as you approach. What must you do?
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Answer A: Stop and wait until the gates are fully raised and the lights stop flashing
Once the gates start down you must stop clear of the tracks and wait until they are fully raised and the warning lights have stopped.
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13. A speed limit sign carries a second panel reading TRUCKS 55. What does that panel do?
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Answer B: It sets a lower legal limit for trucks
A truck speed limit panel is regulatory, so trucks are bound by the lower figure while other traffic keeps to the main limit.
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14. You are traveling a long distance on a highway with three lanes in your direction, at about the speed of the surrounding traffic. Which lane is generally the best choice?
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Answer C: The center lane, which keeps you clear of merging traffic and of overtaking traffic
On a three-lane roadway the center lane avoids both the ramp traffic on the right and the overtaking traffic on the left, so it usually has the steadiest flow.
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15. While you wait for the ambulance at a crash, what is the most useful help you can give?
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Answer C: Keep the person still and warm, and press down firmly on any heavy bleeding
Keeping an injured person still and warm and controlling bleeding are among the few things a bystander can safely do.
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16. Someone appears seriously injured after a crash. What should you generally do?
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Answer C: Call for emergency help and avoid moving the person unless there is an immediate danger such as fire
Moving an injured person can worsen spinal or internal injuries, so summon trained help and leave the person in place unless staying there is more dangerous than moving.
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17. Your phone is in a mount on the dashboard rather than in your hand. What is true?
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Answer B: It still takes your eyes and mind off the road
A mount solves the hand problem but not the eye or the mind problem, and reading or tapping a mounted screen costs the same seconds of attention.
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18. You are stopped at the yield line of a roundabout when an emergency vehicle comes up behind you with lights and siren. What should you do?
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Answer A: Stay out of the roundabout and pull over to the right of your lane if there is room
Never enter a roundabout ahead of an emergency vehicle and never stop inside one; wait clear of the entry so the crew can get through.
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19. Which family of signs normally uses a rectangle that is wider than it is tall?
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Answer B: Guide signs, which name routes and destinations
Guide signs are laid out as horizontal rectangles because they have to carry route numbers, place names and distances side by side.
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20. Your road ends at a T-intersection with no signs or signals. Who has the right-of-way?
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Answer A: Traffic on the through road, and you must yield before entering
A driver on a road that ends at a T-intersection must yield to traffic on the through road that continues past the junction.
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21. A small plate under a stop sign reads CROSS TRAFFIC DOES NOT STOP. What is it telling you?
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Answer D: Traffic on the cross street is not required to stop at all
The plate warns that the other road is uncontrolled, so you must wait for a gap instead of expecting anyone to take turns with you.
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22. You have stopped after a crash. Why should the engines of the vehicles involved be switched off?
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Answer A: To reduce the risk of a fire starting around any fuel that has spilled
Crashes often break fuel lines, and a running engine is a source of ignition, so switching off lowers the risk of fire.
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23. At a rural intersection a beacon flashes yellow toward the main road and red toward the side road. How is each approach treated?
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Answer A: The main road slows and proceeds, the side road stops
An intersection control beacon assigns flashing yellow to the road with priority and flashing red to the approach that must stop and yield.
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24. At which location is this sign normally installed?
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Answer D: Facing traffic that could turn into a one-way roadway or ramp against the flow
It is posted where a driver could otherwise enter a ramp or a one-way roadway from the wrong end, so it faces exactly the traffic that has to be kept out.
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25. A friend who has been drinking insists on driving home. What is the right thing to do?
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Answer B: Take the keys and arrange a sober ride, even if the friend objects
An impaired driver is dangerous on any street at any speed, and coffee does not lower blood alcohol. Keeping the keys and finding another way home is the only safe choice.