District of Columbia DC DMV Permit Practice Test 48
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age16 years
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1. During the reversing part of a three-point turn, where should you be looking?
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Answer C: Over your shoulder through the rear window, glancing both ways
You look through the rear window in the direction the car is moving, checking both ways for traffic and people, because mirrors and cameras leave blind areas.
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2. Someone has stepped into a marked crosswalk in the middle of a block ahead of you. What should you do?
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Answer A: Slow down, stop before the markings and let the person cross the street
A marked mid-block crosswalk carries the same duty as one at a corner: give way to the person crossing, stopping if that is what letting them cross safely takes.
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3. The signal ahead has a sign prohibiting left turns, and your route needs a left. What should you do?
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Answer D: Go straight on and find a legal place to turn and come back
A turn prohibition applies to every driver, so you continue through and reach your route by another legal turn.
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4. About how much alcohol can the body eliminate per hour?
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Answer A: About one standard drink
The liver removes alcohol at a nearly fixed rate of roughly one standard drink per hour. Drinking faster than that raises the blood alcohol level, and nothing speeds the process.
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5. You realize you have just gone past your exit on a freeway. What should you do?
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Answer C: Carry on to the next exit and turn around there
A missed exit costs a few minutes, while backing up or cutting across the striped gore area puts you in the path of traffic that is not expecting it.
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6. Which statement about standard drinks is correct?
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Answer C: A standard serving of beer, of table wine and of distilled spirits each contain about the same amount of pure alcohol
Roughly 12 ounces of regular beer, 5 ounces of table wine and 1.5 ounces of 80 proof spirits each contain about the same amount of pure alcohol, so the type of drink does not change the effect.
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7. Your passengers are being noisy and you are losing concentration. What should you do?
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Answer B: Ask them to settle down, or pull over safely until they do
The driver is responsible for the conditions inside the vehicle, and stopping is always better than driving distracted.
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8. Your right wheels have dropped onto a soft shoulder. Why should you not steer straight back onto the pavement?
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Answer A: The tires can catch the pavement edge and throw you across the road
A tire pressed against the edge of the pavement climbs it suddenly, and at speed that jolt can send the vehicle across the center line.
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9. A child in the back seat unfastens a seat belt while you are on the freeway. What should you do?
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Answer A: Pull off safely and refasten the belt
Turning or reaching back takes your eyes and hands off a high speed task, so leave the freeway or use the shoulder only if there is no exit, then fix the belt.
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10. Approaching the point this sign refers to, which hazard is most likely?
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Answer A: A vehicle pulling out from the entering road into the driver's path
The main risk is a driver on the entering road who misjudges the gap and pulls out, so covering the brake and being ready to slow is the sensible response.
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11. A traffic signal is displaying a flashing red light. How must you treat it?
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Answer D: Stop completely, then proceed when the way is clear
A flashing red carries the same meaning as a stop sign: come to a full stop, then go only when it is safe.
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12. You pull onto a soft grass verge to park. What is the main risk?
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Answer A: The wheels can sink and the car can slide toward the ditch
Soft ground gives way under the weight of a vehicle, and a car that settles or slides sideways can end up stuck or in the ditch.
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13. The passenger-side mirror on most vehicles is convex. What does this mean for the driver?
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Answer D: Vehicles in that mirror are closer than they appear
A convex mirror gives a wider view but shrinks what it shows, so a vehicle looks smaller and therefore farther away than it really is. Allow for this before changing lanes.
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14. An upward-pointing pentagon with a yellow legend and border on a blue background is used as
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Answer D: a county route marker
The pentagon serves both the school warning series and county route markers, and the blue background with yellow legend identifies the county route version.
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15. You are backing out of a driveway that crosses a public sidewalk. What should you do?
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Answer C: Stop before the sidewalk and check both ways
Walkers, runners and riders use the sidewalk at speeds that can bring them into your path in a second, so the stop and the look belong before the sidewalk, not after it.
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16. Why are pedestrians and cyclists a special risk on unlit streets at night?
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Answer A: Dark clothing can make them invisible until they are very close
A person in dark clothing reflects almost no light and may not appear until they are inside your stopping distance, so cut your speed where people may be about.
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17. You are first in the queue at a red light with a marked crosswalk. Where should your vehicle stop?
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Answer A: Behind the stop line, so that the crosswalk stays clear
Stopping short of the line keeps the crosswalk usable for people on foot and keeps your vehicle out of the path of turning traffic.
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18. The driver ahead of you is straddling the lane line and is not signaling. How should you respond?
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Answer B: Stay back until you can see which lane that driver will take
A vehicle astride the line could move either way, so the only safe place is behind it where both possibilities are still covered.
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19. You see an open curb space on the opposite side of a two-way street. What should you do?
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Answer B: Drive on, turn around, and come back on that side
You must park on the right, facing the direction of travel, so reaching a space on the other side means going around rather than crossing into it.
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20. You see brake lights several vehicles ahead of you in your lane. What is the best first step?
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Answer C: Ease off the gas and cover the brake pedal
Reacting to the trouble several vehicles ahead, rather than waiting for the car in front, cuts your reaction time and warns the driver behind you.
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21. You are about to pass another vehicle at night with your high beams on. What should you do?
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Answer C: Switch to low beams as you come up behind it and while you are alongside
High beams shining into the mirrors of the vehicle ahead blind the very driver whose reaction you depend on during the pass.
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22. How often should the spare tire be checked?
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Answer C: Regularly, because a spare loses pressure while it sits unused
Spares lose air slowly over months, and a flat spare is useless at the moment you need it.
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23. On a rural two-lane road you pass small blue signs, each naming one business with an arrow and a distance. What are they?
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Answer D: Tourist-oriented directional signs for traveler businesses
Tourist-oriented directional signs carry a white legend on blue and are used on rural conventional roads to guide travelers to eligible businesses.
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24. Where is a three-point turn most clearly a bad idea?
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Answer A: On a busy street near a curve, where approaching drivers cannot see you
The maneuver leaves you blocking the road for several seconds, so it needs light traffic and a long clear view; a blind curve gives neither.
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25. You get into a heated argument with a passenger while driving. What should you do?
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Answer D: End the discussion or pull over to finish it
Anger narrows attention and encourages risk, and a conversation you cannot let go of is a passenger you should be parked to talk with.