District of Columbia DC DMV Permit Practice Test 27
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age16 years
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1. You come back to find that your parked car has rolled out into the street. What most likely went wrong?
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Answer C: The parking brake was not set and the wheels were not turned
The parking brake, a gear or park, and turned front wheels are three separate safeguards, and a runaway means at least the first two were missing.
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2. What does a broken line indicate, whatever color it is painted?
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Answer C: That crossing it is permitted
A broken line always describes a permissive condition, and the color then tells the driver whether the traffic beyond it runs the same way or the opposite way.
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3. A yellow diamond shows a horse with a rider. Besides slowing down, what else should a driver do?
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Answer C: Avoid using the horn or revving the engine
The equestrian crossing sign warns of horses on or across the road, and a sudden noise can startle an animal into the traffic lane.
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4. While you are still on an entrance ramp, where should your attention be?
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Answer D: Along the ramp ahead and back at the highway traffic in the mirrors and over your shoulder
A merge needs both halves of the picture at once: the ramp curving ahead of you and the traffic you are about to join behind and to your left.
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5. Besides motorist services and tourist information, a blue sign background is also used for
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Answer B: evacuation route signing
Blue is assigned to road user services, tourist information and evacuation routes, so hurricane and other evacuation routes are signed in blue.
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6. A fire truck with lights and siren has just passed you and is heading down the same road. How closely may you follow it?
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Answer B: Well back, because following a responding emergency vehicle closely is illegal
Following a responding emergency vehicle closely is prohibited; the exact minimum distance is set by each state, so stay far enough back to keep the scene and other responders clear.
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7. What does a sign showing a bicycle inside a red circle with a diagonal slash prohibit?
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Answer D: Riding a bicycle on that roadway
This is a selective exclusion sign, used where bicycles are banned from a road such as a freeway or a tunnel.
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8. What does DC law say about an open container of alcohol inside a vehicle parked on a public street?
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Answer B: It is prohibited, and the offense can carry up to 60 days of imprisonment
DC law bans drinking or possessing an open container of alcohol in or upon a vehicle in or upon any street, alley, park or parking area, with a penalty of up to 60 days.
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9. A set of reversible express lanes is closed off with gates and signs while it runs the other way. What must you never do?
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Answer C: Enter past a closed gate or a sign showing the lanes are closed
When reversible lanes are closed they may already be carrying traffic in the opposite direction, so entering past a gate can put you head-on into that traffic.
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10. Red pavement markings are used on a roadway to show that
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Answer A: it must not be entered from that direction
Red markings identify a roadway that is not to be entered or used, and they also mark the pavement of truck escape ramps.
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11. You are on a one-way street with two marked lanes. May you pass a slower vehicle on the right?
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Answer A: Yes, using the right lane, provided that the move is safe and signaled
On a roadway with two or more marked lanes in your direction, moving into the free lane and going by is a normal lane change rather than an unlawful pass.
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12. What is a good rule for any task you want to do inside the vehicle?
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Answer D: If it needs more than a moment, do it stopped
A glance of a second or two is manageable, but any task that runs longer belongs to a stopped vehicle, because the road does not pause while you do it.
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13. A truck ahead of you is spreading salt or grit on the road. What should you do?
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Answer B: Drop back so the material does not reach your car
Spreaders throw material backward and sideways, and following close means stone chips and a screen full of spray, so leave extra distance.
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14. How does the blood alcohol standard for a driver operating a commercial vehicle compare with the one for a car driver?
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Answer D: It is lower, set at 0.04
Commercial drivers are held to a stricter standard of 0.04 because of the size of their vehicles and the risk they carry.
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15. What is a designated driver?
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Answer A: Someone who agrees to drink nothing at all
A designated driver drinks no alcohol whatsoever, because any amount begins to affect judgment and the whole point is a sober driver.
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16. On a two-way street, where and how should you park at the curb?
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Answer C: On the right side, facing the way traffic moves
On a two-way street you must park on the right, headed in the direction of travel; parking facing traffic is prohibited.
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17. Why does the situation ahead of this sign deserve extra care from a motorcyclist?
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Answer C: Because a narrow machine is easy to overlook in a mirror or a blind spot
A motorcycle fills very little of a mirror and disappears easily into a blind spot, so the rider should adjust speed and lane position to stay visible where the streams come together.
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18. The road ahead is broken up with potholes and rough patches. What should you do?
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Answer C: Slow down, since a hole hit at speed can wreck a tire or wheel
A lower speed cuts the impact on tires, wheels and suspension and gives you time to choose a line through the rough surface.
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19. Your headlights suddenly go out while you are driving at night. What should you do?
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Answer A: Try the dimmer switch and the headlight switch, turn on the hazard lights and pull off the road
Switching between high and low beams or cycling the light switch sometimes restores the lights. If not, use the hazard and parking lights to get off the road safely.
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20. How much of a traffic lane is a motorcycle entitled to use?
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Answer D: The full width of the lane
A motorcycle is entitled to the full lane, and riders move within it to stay visible and to avoid surface hazards, so drivers should never try to share a lane with one.
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21. A preferential lane sign reads HOV 2+ and lists the hours it applies. During those hours, which vehicles may use the lane?
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Answer A: Vehicles carrying at least two people, counting the driver
The number on an HOV sign is the minimum number of occupants, driver included, that a vehicle must carry to use the lane while the restriction is in effect.
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22. Where do you find how much weight your vehicle may carry?
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Answer C: On the placard in the driver door opening
The certification placard in the driver door opening gives the load limit and the recommended cold tire pressures for the vehicle as built.
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23. You turn left onto a road that has a center two-way left-turn lane. In which lane should you be traveling once the turn is finished?
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Answer D: The first through lane to the right of the center turn lane
The shared center lane is only for turning movements, so even where a state lets you pause in it to merge you must end up in the first ordinary travel lane beside it.
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24. An arrow panel in a work zone shows four flashing lamps in caution mode instead of an arrow. What does that display mean?
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Answer A: Warning only, so pass the work area with caution in your current lane
Caution mode gives a general warning without directing a lane change, so drivers stay alert and pass the activity with care.
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25. The blue signs mounted before a freeway interchange that carry the logos of individual businesses are
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Answer C: specific service signs, which show the brands available at that exit
Specific service signs, often called logo signs, list eligible businesses for categories such as gas, food, lodging, camping, attractions and 24-hour pharmacies at the upcoming interchange.