District of Columbia DC DMV Permit Practice Test 47
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age16 years
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1. What is the main danger when you back out of an angle parking space?
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Answer A: Parked vehicles beside you hide the traffic coming along the aisle
You have to edge out blind past the vehicles on either side, so back very slowly and be ready to stop as soon as any part of the aisle comes into view.
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2. You are waiting in a left-turn lane at a green light when a fire engine with lights and siren comes toward you in the oncoming lanes. What should you do?
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Answer D: Hold your position and let the fire engine pass
Turning across the path of an approaching emergency vehicle is exactly what you must not do; stay put until it has gone by.
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3. Crossing a parking lot on a hot day, you see a young child alone in a locked car. What should you do?
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Answer A: Call 911 right away and stay with the vehicle
The inside of a parked car can reach lethal temperatures within minutes, so a child left alone in one is an emergency.
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4. Lights set into the pavement along both edges of a crosswalk start to flash yellow as you approach. What do they tell you?
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Answer D: Someone is crossing and has to be given way
In-roadway warning lights flash only when a pedestrian activates the crossing, so a flashing pattern means somebody is in or entering the crosswalk.
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5. For how long is a DC driver license revoked after a third driving under the influence conviction within 15 years?
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Answer B: 3 years
A third DUI within 15 years costs the DC driver a three-year revocation, against six months for a first and one year for a second.
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6. You are waiting to turn left at a solid green light with no green arrow. Oncoming traffic is approaching. What should you do?
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Answer A: Yield to the oncoming traffic and turn only when there is a safe gap
A solid green light permits the left turn but does not protect it, so you must yield to oncoming vehicles and to pedestrians before turning.
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7. You are using the parking brake to slow a vehicle whose brakes have failed. How should you apply it?
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Answer D: Gradually, holding the release so you can let it off if the rear slides
The parking brake works on two wheels only, so applying it hard can lock them and spin the vehicle. Keep the release held so you can back it off instantly.
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8. You are entering an angle parking space on your right. What should you do?
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Answer C: Stay a little left of the space, then turn in between the lines
Keeping a little left of the space gives the front wheels the room to turn in cleanly and leaves your car centered between the lines.
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9. How should your speed behave while you move from one lane into the next?
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Answer C: Keep it steady or adjust it smoothly to match the traffic in the new lane
A lane change works best as a smooth movement at the speed of the lane you are joining, since sudden braking or acceleration surprises the drivers around you.
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10. A vehicle in the lane beside you has stopped at a crosswalk. What should you do?
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Answer C: Stop as well, because that driver may be yielding to a pedestrian you cannot see
The stopped vehicle hides the crosswalk from you, and passing it is a leading cause of collisions with pedestrians who are already crossing.
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11. Every signal head at an intersection is flashing red in all directions. How should you treat the intersection?
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Answer C: As an all-way stop, stopping and then going in turn
Red flashing in every direction means each approach must stop, so the intersection works exactly like an all-way stop.
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12. What are front fog lights for?
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Answer D: Adding a low, wide beam close to the car when visibility is poor
Fog lights throw a low, wide beam under the fog, which is why they are mounted low and are used only in poor visibility.
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13. You are passing a large truck on an open highway in a strong crosswind. What should you expect?
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Answer A: A push toward the truck, then a push the other way as you clear it
The truck shelters you as you go by and then releases you into the full gust, so the load on the steering changes twice during the pass.
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14. You are approaching a yield sign on a ramp that joins a busy street. What does the sign require?
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Answer A: Slow down, be ready to stop, and let the other traffic go first
A yield sign means you must slow, be prepared to stop and give way to traffic on the road you are entering; a full stop is required only when traffic makes it necessary.
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15. At the scene of a crash you were part of, what are you required to do besides stopping?
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Answer B: Give your name, your address and vehicle details, and help anyone who is hurt
Every state requires drivers involved in a crash to identify themselves and to render reasonable aid to anyone injured.
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16. You are turning left from a two-way street onto another two-way street. Where should you begin and end the turn?
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Answer B: Begin in the lane just right of the center line and finish just right of the center line of the new street
You approach a left turn from the lane closest to the center line and enter the new roadway just to the right of its center line, which keeps you clear of oncoming traffic.
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17. You are about to open your door after parking on the traffic side of the street. What should you do first?
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Answer C: Check the mirror and look back for approaching vehicles and bicyclists before opening the door
A door opened into traffic can strike a passing bicyclist or vehicle, so you check behind you first and keep the door open no longer than necessary.
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18. A United States numbered route is normally marked with
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Answer C: black numerals on a white shield
The U.S. route marker is a white shield carrying black numerals, which sets it apart at a glance from the red, white and blue Interstate shield.
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19. Which steering method gives the most control when you must turn the wheel a long way at low speed?
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Answer C: Hand over hand, feeding the wheel from one hand to the other
Hand over hand keeps both hands on the wheel through a large turn, so you never lose the ability to correct quickly.
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20. Why is hard braking the wrong response to a tire blowout at speed?
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Answer C: Because it can pull the vehicle further out of line and start it spinning
With one tire gone the braking forces are uneven, so heavy braking increases the pull to one side and can spin the vehicle.
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21. A crash happens directly in front of you and vehicles are blocking both lanes. What should you do?
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Answer B: Stop at a safe distance, put on the hazards and warn the traffic behind
The greatest danger after a crash is a second collision, so stop short of it and make sure the traffic behind you can see the problem.
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22. Two solid white lines separate your lane from the lane beside it. What do they mean?
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Answer B: Crossing from one lane to the other is prohibited
A solid double white line marks a boundary that road users may not cross, such as the entrance to a preferential lane.
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23. What is the safest way to pass a bicyclist on a road with two lanes going your way?
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Answer D: Change lanes completely, as you would for a car
A bicycle is entitled to the room a vehicle needs, and moving into the next lane gives the rider space to swerve around a drain or a pothole.
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24. A yellow sign reads SOFT SHOULDER. What is it telling you?
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Answer C: The shoulder may not carry the weight of a vehicle
A soft shoulder is unpaved and can let a wheel sink, so a driver who leaves the pavement there may lose control or become stuck.
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25. You know in advance that you will be drinking at an event. What is the most reliable plan?
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Answer A: Arrange a driver who will not drink, or another way home, before the event begins
A decision made before drinking is not affected by alcohol, while judging your own fitness afterward relies on the very ability alcohol impairs first.