South Carolina SCDMV Permit Practice Test 23
- Questions30
- Correct to pass24
- Passing score80%
- Minimum age15 years
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1. What is the base penalty range for a first DUI conviction in South Carolina when the driver's alcohol concentration is below 0.10 percent?
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Answer C: A 400 dollar fine or 48 hours to 30 days imprisonment
Section 56-5-2930(A)(1) sets the base first-offense DUI penalty at a 400 dollar fine or 48 hours to 30 days in jail, with public service allowed in place of the minimum jail time.
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2. 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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3. Yellow signs each showing one large black arrowhead, installed in a row along the outside of a curve, are
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Answer D: chevron alignment signs marking the change of direction of the curve
Chevron alignment signs are placed on the outside of a curve so that several are in view at once, letting the driver judge how sharply the road turns.
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4. What does this sign require of the driver?
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Answer D: Reducing speed and being ready to stop at the intersection ahead
The advance notice asks the driver to slow and be ready to stop, while whether a stop is actually needed depends on the indication displayed on arrival.
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5. 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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6. In a work zone a flagger is directing traffic in a way that conflicts with the posted signs. Whom do you follow?
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Answer B: The flagger's directions
A flagger controls traffic through a work area that changes from day to day, and those instructions take precedence over the fixed signs and markings in that zone.
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7. You signaled a lane change and the signal did not switch itself off afterwards. Why does that matter?
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Answer B: Other drivers may act on a turn you do not intend to make
A signal left on tells other drivers you are about to turn, and someone may pull out in front of you. Cancel it as soon as the maneuver is finished.
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8. Is dictating a message by voice a safe alternative to typing one?
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Answer C: No, it still takes attention from driving
Composing and checking a spoken message loads the mind and usually pulls the eyes to the screen anyway, so research finds it no safer than other phone use.
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9. You are approaching a multilane roundabout. When should you choose your lane?
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Answer C: Before you enter, using the lane-choice sign on the approach
You select your lane on the approach the way you would at any multilane intersection, then stay in that lane all the way around, because changing lanes inside a roundabout creates side-impact conflicts.
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10. 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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11. What is the best way to keep your phone from distracting you on a trip?
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Answer D: Silence it and stow it before you start
A phone you cannot hear and cannot reach cannot tempt you, which is far more reliable than deciding case by case while you drive.
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12. A rectangular marker with alternating black and retroreflective yellow stripes set at a slant is used to
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Answer C: mark an obstruction, with the stripes sloping down toward the side on which traffic should pass
This striped panel is an object marker, and the direction in which the stripes slope shows the driver which side of the obstruction to pass on.
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13. Why does the speed of the right-hand lane of a freeway change so often?
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Answer B: Vehicles entering and leaving the highway all use that lane
Entrance and exit ramps feed into the right lane, so traffic there is constantly slowing to leave or speeding up to join.
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14. What injury does a correctly set head restraint help prevent?
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Answer A: A neck injury of the kind caused when your vehicle is struck from behind
In a rear impact the body is pushed forward and the head restraint stops the head from whipping backward.
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15. Why is smooth, early braking better than hard, late braking?
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Answer D: It keeps you in control and gives the driver behind more warning
Braking early and gently keeps the tires well within their grip and gives following drivers time to react to your brake lights.
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16. Why are eating, drinking and personal grooming risky behind the wheel?
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Answer B: They occupy hands, eyes and attention that driving requires
Each of these tasks takes a hand off the controls and attention off the road, and a spill or a dropped item can pull the driver's eyes away entirely.
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17. You have a steady green ball to turn left, and the oncoming traffic gets a green left arrow. What does that mean for you?
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Answer C: Oncoming vehicles will turn across your path, so you must wait
A green ball is permissive, so when the oncoming side receives a protected arrow those vehicles have priority and you must yield until they clear.
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18. A wide crosswalk you are turning across has a refuge island in the middle. What should you assume about people standing on it?
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Answer D: They may step off the island into your path at any moment
An island is a pause in a crossing, not the end of one, so treat anyone on it as a pedestrian who is still crossing.
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19. The tire pressure monitoring symbol lights up on your dashboard. What is the system telling you?
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Answer A: At least one tire is significantly underinflated
The system warns when a tire falls well below the recommended pressure. Check all four with a gauge and inflate to the placard figure while they are cold.
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20. Besides school signing, which warning signs may also use a fluorescent yellow-green background?
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Answer C: Pedestrian and bicycle warning signs
Pedestrian crossing, bicycle and playground warning signs may use either the standard yellow or the fluorescent yellow-green background, which draws extra attention where people outside vehicles are present.
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21. At what alcohol concentration does South Carolina charge a driver with driving with an unlawful alcohol concentration?
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Answer B: 0.08 percent or more
State law makes it unlawful to drive with an alcohol concentration of eight one-hundredths of one percent or more, separately from the driving under the influence offense.
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22. 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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23. A sign at the approach to a bridge reads WEIGHT LIMIT 10 TONS. What does the figure set?
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Answer B: The heaviest vehicle the bridge may legally carry
A weight limit sign is a regulation based on what the structure can bear, and it applies to the loaded weight of the whole vehicle.
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24. Why does a dirty windshield matter much more at night than during the day?
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Answer C: Dust and streaks scatter oncoming light and increase glare
Film and streaks on the glass spread every oncoming headlight into a star of glare, so clean the inside as well as the outside before a night trip.
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25. Where is passing prohibited even when no line is visible?
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Answer D: On a curve or near the crest of a hill, at intersections and at railroad crossings
Passing is prohibited wherever your view of oncoming traffic is blocked or where vehicles may cross your path, which includes hills, curves, intersections and rail crossings.
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26. You have just been involved in a crash on a city street. Which sequence of first steps is correct?
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Answer A: Stop where you are, check everyone for injuries, and then make the scene safe
You are required to stop, and the first priority at the scene is people, followed by preventing a second collision.
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27. 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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28. For an alert driver, about how long is the reaction time once a hazard has been recognized?
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Answer A: About three quarters of a second
Reaction alone takes roughly three quarters of a second for an alert driver, and perception takes about as long again, so a second and a half of travel is added before the brakes bite.
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29. A reduced speed limit posted with this sign and a plaque giving hours is in force
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Answer C: during the hours shown on the plaque, or while the beacon is flashing
A school speed limit applies during the periods stated on the plaque or while the attached beacon flashes, and the regular limit governs outside those periods.
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30. Why is following distance measured in seconds rather than in car lengths?
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Answer A: Because a time gap automatically grows with speed, while a fixed number of car lengths does not
A gap counted in seconds keeps the same margin of reaction time at any speed, whereas a fixed number of car lengths becomes far too small as speed rises.