South Carolina SCDMV Motorcycle Practice Test 20
- Questions30
- Correct to pass24
- Passing score80%
- Minimum age15 years
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1. Why do safety agencies put head protection first among riding gear?
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Answer A: Because head injuries are the leading cause of death in motorcycle crashes
Head injury is the most common cause of death in motorcycle crashes, which is why a certified helmet is the single most important piece of gear.
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2. A rider chooses an open face helmet. What does that choice make necessary?
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Answer A: Separate goggles or a face shield, because the face is uncovered
An open face helmet gives no eye or face protection, so the rider must add goggles or a face shield that will not shatter and that seals against the wind.
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3. You have stopped on the shoulder of a highway and want to rejoin the traffic. What is the correct way?
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Answer D: Signal, build up speed along the shoulder, then merge into a gap
Entering a fast lane at a slow speed is what causes the conflict, so the shoulder is used to gain speed before the merge in the same way as an acceleration lane.
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4. How much following distance should you keep behind a motorcycle?
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Answer C: At least three to four seconds
A motorcycle can slow or stop very quickly and is easily upset by a surprise, so allow three to four seconds instead of the usual car gap.
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5. You are following a car at night with the high beam on. What should you do?
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Answer C: Switch to the low beam so the driver ahead is not blinded
A high beam fills the mirrors of the vehicle ahead and blinds its driver, which is dangerous for the very driver most able to affect the rider.
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6. May a South Carolina driver unlock a mobile electronic device in order to start turn-by-turn navigation while driving?
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Answer B: Yes, unlocking for that exempted purpose is allowed, as long as the device is not held or supported by the driver's body
Section 56-5-3890(C)(6)(c) allows unlocking the device for an exempted purpose such as navigation, provided it is not held or supported by the driver.
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7. Traffic is heavy and a truck is stopped in the lane on your right. How do you keep an out?
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Answer B: Keep space open ahead of you and avoid being boxed in on both sides at once
Being hemmed in on both sides with no gap ahead removes every option, so keep at least one direction open.
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8. Along a highway the reference markers count upward as you travel. Where does the numbering normally begin?
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Answer C: At the southern or western edge of the state
Mileage numbering starts where the route enters the state from the south or the west, so rising numbers tell a driver which way they are heading.
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9. What do two solid yellow lines down the middle of a two-way road mean?
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Answer D: Passing is prohibited for traffic in both directions
A double solid yellow line marks a two-direction no-passing zone, so neither direction may cross it to overtake another vehicle.
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10. What should a rider check about the size of a motorcycle before riding it?
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Answer C: That both feet reach the ground and the controls are within reach
A motorcycle that fits lets the rider put both feet down at a stop and work every control without stretching, and a machine that is too tall or too heavy is hard to hold up in slow traffic.
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11. Your phone is in a mount on the dashboard rather than in your hand. What is true?
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Answer B: It still takes your eyes and mind off the road
A mount solves the hand problem but not the eye or the mind problem, and reading or tapping a mounted screen costs the same seconds of attention.
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12. Why does even a small reduction in speed matter so much where people are walking?
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Answer D: Because a pedestrian struck at a lower speed is far more likely to survive
The chance that a pedestrian survives falls steeply as impact speed rises, so a few miles per hour can decide the outcome.
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13. You are stopped at a T-intersection and a driver on the through road is signaling a right turn into your road. What is the safe assumption?
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Answer B: The driver may not actually turn, so wait until the vehicle slows and starts turning
A blinking signal may have been left on by mistake or may be for the next street, so wait until the vehicle actually slows and turns.
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14. What does the traffic law actually say about the right of way?
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Answer B: It says who must yield; no driver is ever entitled to take the right of way
The law describes who must yield. Right of way is something you give; insisting on it when another driver does not yield causes crashes.
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15. When downshifting as the motorcycle slows, what keeps the rear tire from skidding?
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Answer A: Easing the clutch lever out smoothly instead of releasing it abruptly
Letting the clutch out gradually lets engine speed and road speed match, so the rear wheel is not forced to slow suddenly.
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16. A highway lane is marked with a large white diamond and signed as a high-occupancy vehicle lane. Who may use it?
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Answer B: Only vehicles carrying at least the number of occupants shown on the sign, during the posted hours
The diamond marking identifies a preferential lane whose occupancy requirement and hours of operation are stated on the accompanying signs.
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17. Why is a sign reading BRIDGE ICES BEFORE ROAD worth heeding even when the road itself is merely wet?
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Answer C: Cold air passes under a bridge as well as over it
A bridge deck loses heat from below as well as above, so it can be frozen while the road on either side of it is only wet.
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18. Your group reaches a work zone where the lane has been narrowed by cones and the surface is uneven. What should the formation do?
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Answer B: Move to single file and give each rider the whole width of the lane
A narrowed or broken surface leaves no spare room inside the lane, so riders need the full lane width each and must drop into single file.
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19. You are moving at walking pace through a crowded parking area. Which combination gives the steadiest control?
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Answer B: Steady throttle, the clutch held in the friction zone and light rear brake
Slipping the clutch in the friction zone against a steady throttle and a light drag of rear brake keeps power smooth and the machine stable below walking speed.
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20. A pedestrian is waiting to cross ahead of you and you have slowed down. What helps most?
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Answer D: Making eye contact, so that you both know you have seen each other
Eye contact confirms that you have seen each other; waving someone across can send them into the path of another vehicle.
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21. May you exceed the posted speed limit in order to complete a pass?
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Answer C: No, the posted limit applies while you are passing too
The limit does not lift for passing; if you cannot complete the pass within it, there is not enough room and you should stay back.
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22. How should following distance change when you ride at night?
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Answer D: Open it up to three seconds or more
Less light means hazards appear later, so a rider should slow down and stretch the following distance to three seconds or more.
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23. How should you use your mirrors while another vehicle overtakes you on a multilane road?
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Answer C: Follow it from the inside mirror to the side mirror and then to your own view
Handing the vehicle from one mirror to the next keeps it in sight through the blind spot instead of losing it there.
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24. There is a stop sign but no stop line and no crosswalk. Where must you stop?
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Answer A: Before entering the intersection, where you can see cross traffic
With no line or crosswalk, stop before you enter the intersection at the point where you can see traffic on the cross street.
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25. At a four-way stop you and an opposing driver arrive together. You are going straight and the other driver is turning left across your path. Who goes first?
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Answer B: You do, because the left turn crosses your path
When two opposing drivers arrive together, the one going straight goes first and the left-turning driver yields.
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26. A mixed drink is made with two shots of spirits. How much alcohol is that?
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Answer C: About two standard drinks
A standard drink is a fixed amount of pure alcohol, so a glass poured with two measures counts as two drinks however it is served.
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27. Why does this warning matter more on a motorcycle than in a car?
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Answer B: Because a sudden jolt can unsettle a two-wheeled machine and the rider can lose control
A jolt can push a motorcycle off line or lift a wheel, so a rider slows early, comes slightly off the seat and keeps a relaxed but firm hold on the handlebars.
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28. 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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29. How can you tell a tire has reached its wear limit without measuring it?
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Answer C: The wear bars across the grooves become level with the tread
Molded bars sit at the bottom of the grooves. Once the surrounding tread has worn down to them, the tire has reached the end of its safe life.
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30. You notice a bulge on the sidewall of one of your tires. What should you do?
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Answer D: Have the tire replaced before driving far, because it could blow out
A sidewall bulge means the internal cords have broken and only the rubber is holding the air. The tire can fail suddenly at any speed.