South Carolina Permit Practice Test 4
A fourth full-length South Carolina practice test: 30 more questions with zero repeats from Tests 1–3 — including extra South Carolina-specific rules. You need 80% correct to pass the real SCDMV Knowledge Test.
Tap an answer. The explanation opens so you can learn it, then go on. Keyboard: A–D or 1–4 to answer, then Enter or Space.
Question 1 of 30
1. The traffic signal is dark at an intersection because of a power failure. How should you treat it?
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Correct answer: A. A dark signal is treated like a stop sign in every direction so nobody assumes they have a green. Come to a full stop, then apply the usual all-way-stop order. No lights means nobody has a free pass.
2. Wide white stripes cross the pavement ahead, marking a crosswalk. What do these markings require of you as a driver?
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Correct answer: C. Crosswalk stripes show where pedestrians are expected to cross, and drivers must yield to people within them. You stop only when someone is crossing or a sign or signal requires it. Painted stripes mean feet ahead.
3. A freeway on-ramp has a recommended speed of 35 mph on a yellow plaque. The freeway is posted 65. What should you do on the ramp curve?
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Correct answer: B. Yellow advisory speeds mark ramps and curves that cannot be taken at the highway limit. Slow for the curve, then speed up in the acceleration lane. Advisory plaques are the voice of physics, not decoration.
4. Which MUTCD warning-sign group includes the Deer sign W11-3?
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Correct answer: A. Official MUTCD 2009 Part 2C lists Non-Vehicular 2C.50, 51 Pedestrian, Deer, Cattle, Snowmobile, Equestrian, Wheelchair, Large Animals, Playground as W11-2,3 and related signs. Testers invent leftover dusk-group folklore. Learn that official wording, then answer the knowledge test from those words.
5. You are delivering food to a house on an unposted residential street in South Carolina. Unless a sign changes it, what speed limit applies?
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Correct answer: A. Unposted residential streets in South Carolina carry a default limit of 30 mph. The rule exists so drivers can stop for the unexpected, like a car backing out of a driveway. When a sign is posted, obey the sign instead.
6. What would a NHTSA brake-throttle override require when a pedal is stuck?
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Correct answer: A. Official NHTSA FMVSS 124 NPRM text says a brake-throttle override (BTO) system would require that input to the brake pedal in a vehicle must have the capability of overriding input to the accelerator pedal. The leftover shift-to-neutral mnemonic is not on that page; this nearby official stuck-accelerator rulemaking sentence is.
7. Children are playing near the curb on an unposted neighborhood street in South Carolina. Unless a sign says otherwise, the fastest you may legally drive here is which speed?
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Correct answer: A. The default residential limit in South Carolina is 30 mph unless otherwise posted. With children nearby, you should often go slower still, because stopping distance grows quickly with speed and kids can dart into the street without warning.
8. You see an ambulance stopped with flashing lights on a four-lane South Carolina highway. What does state law require of you?
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Correct answer: A. South Carolina's emergency scene law makes you slow down and, on highways with four or more lanes, vacate the lane beside a stopped emergency vehicle when safe; violations bring fines of $300 to $500. Give roadside workers a lane of space.
9. If headlights fail, what first step does the official AZ driver manual (nationally taught headlight-failure technique) list?
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Correct answer: A. Official Arizona Driver License Manual wording — taught the same way in many state manuals — says Try the high beam/low beam switch. This may restore normal function. Turn the headlight switch on and off several times. If neither of these steps work, put on the parking lights, emergency flashers or turn signals; pull to the side of the road and stop.
10. A yellow diamond sign shows a truck tilted nose-down on a black slope. You are about to descend a long, steep grade. What is the proper technique?
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Correct answer: C. On a steep downgrade, shift to a lower gear before descending so engine braking holds your speed, and use the brakes sparingly. Constant braking overheats the pads until they fade and fail. Gears save brakes; brakes alone can quit.
11. You're 16. How long must you hold your South Carolina beginner's permit before you can apply for a license?
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Correct answer: B. South Carolina drivers under 18 must hold a beginner's permit more than 180 days — you may apply on day 181 or later. The long window builds real practice time. Think of it as roughly six months of learning first.
12. The posted limit is unchanged, but traffic, weather, and light have all gotten worse. What does the basic speed rule require?
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Correct answer: C. The basic speed rule says you may not drive faster than conditions safely allow, no matter what the sign posts. Rain, darkness, and crowds shrink your margin for error. Conditions set the real limit; the sign sets the ceiling.
13. You are driving on a road with few traffic lights when you see a yellow diamond sign showing a traffic signal symbol. Why is this sign posted, and how should you respond?
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Correct answer: B. Signal-ahead warnings are posted where a traffic light may surprise drivers, such as after a long stretch without one or where a hill blocks the view. Ease off the gas early so a sudden red light cannot catch you.
14. In South Carolina, a driver who is 21 or older breaks the law by driving with a blood alcohol concentration (BAC) at or above what level?
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Correct answer: A. South Carolina law makes it illegal to drive with a BAC of 0.08% or higher. Alcohol slows judgment and reaction time, and impairment can begin well below that number. Treat 0.08% as a legal line, not a safe target.
15. When does South Carolina say you do not have to stop for a school bus in a loading zone?
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Correct answer: A. South Carolina lists two no-stop cases: a passenger loading zone completely off the main travel lanes when pedestrians are not allowed to cross the roadway, and meeting a stopped bus from the opposite direction on a multi-lane highway or private road with at least two lanes each way. You must always stop when you are behind the bus.
16. The vehicle ahead displays an orange triangle with a red border on its rear. What does that tell you?
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Correct answer: D. The orange triangle is the slow-moving vehicle emblem, common on farm equipment and horse-drawn wagons. You close in on these vehicles faster than you expect, so back off early and pass only with a clear, legal gap.
17. A friend says every US interstate is 80 mph. In South Carolina, the highest posted highway limit is actually:
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Correct answer: A. Interstate limits vary. South Carolina tops out at 70 mph where posted. Learn the number for your state, then obey the sign in front of you, which is often lower.
18. While you wait to turn, the green arrow changes to a steady yellow arrow. What is the signal telling you?
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Correct answer: D. A steady yellow arrow warns that the protected turning phase is about to end. Stop if you can do so safely; drivers already at the point of no return may finish the turn cautiously. Yellow arrow means wrap up, not speed up.
19. If a state legalizes marijuana possession, may you drive under the influence of the drug?
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Correct answer: A. Official NHTSA drug-impaired-driving guidance says Even in states where marijuana laws have changed, it is still illegal to drive under the influence of the drug. Driving impaired by any substance is against the law in all 50 states and the District of Columbia.
20. An ambulance with flashing lights and a siren comes up behind you on a two-way street. What should you do?
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Correct answer: C. When an emergency vehicle approaches with lights and siren, pull to the right edge of the road and stop, avoiding blocking intersections. A predictable move to the right opens a clear lane. Everyone right, everyone stopped, help gets through.
21. A yellow diamond shows a truck tipping on a curved arrow. What should you do before the curve?
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Correct answer: B. The tipping-truck symbol marks a curve or ramp with a recommended lower speed for high-center vehicles — and a wise lower speed for everyone. Slow before you enter the curve, not in the middle of it.
22. You are studying for the South Carolina permit knowledge exam and want to schedule it as early as the law allows. You can hold a learner's permit beginning at which age?
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Correct answer: C. In South Carolina, 15 is the earliest age for a learner's permit, so plan your knowledge exam around that date. Study the official handbook, since permit questions come from it, and arrive with the required documents ready.
23. You want to park on a street just before a crosswalk. What minimum clearance do most handbooks require?
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Correct answer: B. A common handbook rule is 20 feet from a crosswalk so turning drivers and pedestrians can see each other. Parking closer hides people in the stripes. Twenty before the walk, then the hydrant's fifteen, is the pair testers expect.
24. You are pulling out of a driveway onto a public street. What must you do?
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Correct answer: D. A driver entering a road from a driveway, alley, or private road must yield to sidewalk pedestrians and to all traffic already on the roadway. Public-road users cannot predict your exit, so the burden is on the driver emerging.
25. A teen walks into a South Carolina Department of Motor Vehicles (SCDMV) office in South Carolina to apply for a first learner's permit. The office can accept the application once the teen is what age?
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Correct answer: B. The SCDMV accepts learner's permit applications at age 15 in South Carolina. Bring proof of identity, residency, and usually a parent's signature, then pass the knowledge and vision screenings. Age is simply the first box to check.
26. In which situations should you add extra following distance behind the vehicle ahead?
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Correct answer: C. Add following distance whenever stopping gets harder or seeing gets worse: slick roads, tailgaters behind you, big trucks blocking your view, or motorcycles that can stop quickly. More risk calls for more room ahead of you.
27. A 19-year-old is pulled over in South Carolina after a party. Under the zero-tolerance law, what BAC is enough for an underage drinking-and-driving violation?
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Correct answer: D. For drivers under 21 in South Carolina, a violation begins at 0.02%. Zero-tolerance laws exist because young, inexperienced drivers face high crash risk with any alcohol. If you are underage, the only legal amount is none.
28. Which pair of official NHTSA NDR codes records driving while a license is revoked versus suspended?
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Correct answer: A. Official 23 CFR 1327 Appendix A (NHTSA NDR) lists B25 Driving while license revoked and B26 Driving while license suspended as separate codes. The leftover temporary-versus-erased definition is state terminology; this nearby official national code pair is.
29. When must South Carolina drivers stop for a school bus, including amber lights?
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Correct answer: A. South Carolina requires a stop for the entire time a school bus is stopped or preparing to stop with red or amber lights flashing or its stop arm extended, whether you meet the bus or travel behind it on any two-lane highway. On a four-lane or multi-lane highway you must stop when traveling behind the bus or when trying to pass a bus with red or amber signals flashing.
30. A passenger claims some South Carolina highways have unlimited speed like the German autobahn. In reality, the state's highest legal limit is which of these?
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Correct answer: D. Every road in South Carolina has a limit, and the statewide ceiling is 70 mph on designated highways. Higher speeds multiply crash energy dramatically, so no US state allows unlimited speed. Follow whatever limit is actually posted.
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