South Carolina SCDMV Motorcycle Practice Test 42
- Questions30
- Correct to pass24
- Passing score80%
- Minimum age15 years
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1. Why do bridges and overpasses deserve extra caution when temperatures are near freezing?
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Answer A: They lose heat from above and below, so they ice over before the surrounding road
A bridge deck is exposed to cold air on both surfaces and has no ground beneath it to hold heat, so ice can form there while the connecting road is still only wet.
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2. You arrive at an intersection where the traffic signals are completely dark after a power failure. What should you do?
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Answer A: Treat the intersection as an all-way stop and take turns
When a signal is dark or out of order, drivers on every approach must stop and proceed in turn, exactly as at a four-way stop.
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3. A signal stands part way up a freeway entrance ramp and turns green briefly again and again. How many vehicles does such a signal normally release on each green?
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Answer A: One for each lane of the ramp
A ramp control signal releases a single vehicle per lane on each green so that vehicles reach the merge one at a time instead of in a bunch.
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4. What penalty does South Carolina set for operating a motorcycle on public streets without the headlight turned on?
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Answer B: A fine of up to 25 dollars, or up to 10 days imprisonment
Section 56-5-4460 sets a misdemeanor penalty of a fine up to 25 dollars or imprisonment up to 10 days for this violation.
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5. Someone appears seriously injured after a crash. What should you generally do?
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Answer C: Call for emergency help and avoid moving the person unless there is an immediate danger such as fire
Moving an injured person can worsen spinal or internal injuries, so summon trained help and leave the person in place unless staying there is more dangerous than moving.
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6. There is a driveway and a side street between you and the corner where you will turn right. When should you signal?
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Answer C: After passing the openings, so nobody pulls out in front of you
A signal switched on before an opening tells drivers waiting there that you are turning in, and they may pull out into your path.
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7. A school crossing guard has returned to the curb but two children are still walking across the road. When may you go?
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Answer C: Only after the children have reached the far sidewalk
The guard leaving the road does not end your duty; you stay stopped until every child is clear of the roadway.
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8. In a work zone, the flagger's instructions conflict with the pavement markings still visible on the road. Which do you follow?
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Answer B: The flagger, because a person directing traffic outranks the markings
An authorized flagger controlling a temporary traffic control zone overrides signs, signals and markings, and drivers must obey the flagger's signals.
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9. Your route crosses a long steel grid bridge deck. What should you do about braking and speed while you are on the grating?
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Answer B: Keep a steady speed and do any braking before the grating, not on it
A steel deck makes the motorcycle weave and offers less grip, so set your speed before you reach it, ride straight across, and brake on solid pavement.
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10. You are riding where fresh pavement meets an older lane that sits an inch or two lower. How should you move across that edge?
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Answer A: Slow down and cross the edge at as sharp an angle as the lane allows
A pavement edge break can steer the front wheel along it if you meet it at a shallow angle, so slow, hold the bars firmly and cross it steeply.
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11. How tight should the chin strap of a helmet be?
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Answer D: Snug under the jaw, tight enough that the helmet cannot be pulled off
A helmet only works if it stays on, so the strap must be fastened snugly under the jaw on every ride, including short ones.
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12. What penalty does South Carolina impose for violating the move-over law when approaching a stationary authorized emergency vehicle?
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Answer D: A misdemeanor fine of not less than 300 dollars nor more than 500 dollars
Section 56-5-1538(H) makes the violation a misdemeanor punishable by a fine between 300 and 500 dollars.
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13. What is the best way to handle fatigue on a long ride?
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Answer C: Take rest breaks regularly and dress to keep wind and cold out
Wind, vibration and cold tire a rider faster than a driver, and the safe answer is planned breaks and protective clothing rather than pressing on.
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14. A delivery truck is parked in your lane and you must use the oncoming lane to get around it. Who has the right of way?
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Answer D: The oncoming traffic, because their lane is clear
The driver whose own lane is obstructed waits, because using the other lane is a favor from oncoming traffic, not a right.
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15. A steady green downward arrow is displayed above the lane you are in. What does it tell you?
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Answer A: You may drive in that lane
A green downward arrow means the lane beneath it is open for travel in your direction.
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16. You find that the road surface has turned to sheet ice. What speed is appropriate?
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Answer A: A crawl, slow enough that you could stop without braking hard
Ice can cut grip to a fraction of normal, so stopping takes many times the usual distance and only a crawl leaves any margin.
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17. You are traveling at 55 mph on a rural road and come up behind a horse-drawn buggy. What is the main danger?
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Answer D: You close on it very quickly because it moves at walking pace
A buggy travels only a few miles an hour, so the gap closes far faster than drivers expect and there is very little time to brake once you see it.
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18. A yellow diamond shows an arrow that doubles back on itself. What kind of curve lies ahead?
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Answer C: A turn of 135 degrees or more, nearly doubling back
The hairpin curve sign is used where the road changes direction by 135 degrees or more, and it is normally backed up by chevrons or a large arrow through the bend.
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19. On a South Carolina highway with at least four lanes, what does the law require when you approach a stationary emergency vehicle with flashing lights?
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Answer D: Move into a lane that is not next to the emergency vehicle when it is safe to do so
Drivers must slow significantly and change into a lane that is not adjacent to the emergency vehicle where the road has four or more lanes with at least two in the same direction; if changing lanes is unsafe, they must keep a safe speed.
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20. At a railroad crossing with no gates and no flashing lights, the crossbuck is normally combined with which sign?
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Answer C: A yield sign, or a stop sign where an engineering study calls for one
At a passive crossing the crossbuck forms an assembly with a yield sign, or with a stop sign when an engineering study or engineering judgment supports it, so the driver knows who must give way to the train.
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21. 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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22. An oncoming vehicle at night has its high beams on and you are being dazzled. Where should you look?
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Answer A: Toward the right edge of your lane
Looking toward the right edge line keeps you on course while sparing your eyes the worst of the glare. Slow down and do not retaliate with your own high beams.
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23. You are following a large truck on a two-lane road and cannot see past it. What should you do before deciding to pass?
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Answer D: Drop back so that your view of the road ahead opens up
Distance is what buys you a view around a large vehicle, and no decision to pass can be made from a position where you cannot see.
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24. You are about to pass a long tractor-trailer on a two-lane road. What should you expect?
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Answer B: You will need more clear road, since the vehicle is much longer
A tractor-trailer can be 70 feet long, so passing it takes more distance and more time than passing a car at the same speed difference.
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25. What is the main danger of grabbing the front brake lever abruptly?
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Answer D: The front wheel can lock, and a locked wheel cannot steer or balance
The front brake must be squeezed progressively so that weight transfers onto the front tire before full braking force is asked of it.
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26. You are approaching a highway-rail grade crossing marked only with a crossbuck sign. What does that sign require?
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Answer A: Yield to any approaching train and cross only when the tracks are clear
The crossbuck is a regulatory yield sign, and a train can never stop or steer around a vehicle, so the driver must always give way.
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27. A car is waiting at a side street to pull out as you approach the intersection. What speed adjustment helps most?
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Answer B: Slow enough that you could still stop before reaching the intersection
Covering the brakes and reducing speed turns a possible collision into a stop the rider can actually make if the driver moves out.
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28. You are traveling at the same speed as a vehicle in the next lane, just behind its rear door. What should you do?
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Answer B: Change your speed so that you leave that driver's blind spot
That position is the classic blind spot. Slow slightly or move ahead so the other driver can see you before deciding to change lanes.
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29. At a freeway exit ramp, this sign normally backs up which other regulatory sign posted nearer to the ramp terminal?
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Answer D: The sign that forbids entering that roadway at all
The two work as a pair at ramp terminals: one keeps drivers from turning in, and this one sits farther along to catch a driver who has already entered.
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30. Two solid white lines are painted between your lane and the lane beside it. What do they mean?
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Answer D: Crossing from one lane to the other is prohibited
Double solid white lines separate lanes of traffic going the same way and may not be crossed.