South Dakota Car / Permit practice
South Dakota Car / Permit: Sharing the Road practice test
Driving safely around motorcycles, bicycles, large trucks, pedestrians, and school buses — and knowing who has the right of way.
Content reviewed against official driver handbooks · August 12, 2026
15 questions · pass with 12 correct. You get instant feedback and an explanation after every answer.
Study questions with answers
12 sample Sharing the Road questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
Show all 12 questions with answers
1. Why does the manual discourage sounding the horn close to a bicyclist?
Correct answer: A startled rider may swerve into your path and crash
The noise can startle the rider into steering into your path and crashing, so save the horn for a genuine risk of collision.
Source: South Dakota Driver License Manual — Sharing the Road, Bicyclists
2. What minimum following interval does the manual give for driving behind a motorcycle?
Correct answer: Four seconds
Stay at least four seconds back, and stretch that out further when the road is wet.
Source: South Dakota Driver License Manual — Sharing the Road, Motorcyclists
3. May a South Dakota driver cross part of the centerline to give a bicycle the room the law requires?
Correct answer: Yes, when it can be done safely
The statute lets a driver overtaking a bicycle move partly across the centerline or lane divider whenever that can be done safely.
Source: South Dakota Driver License Manual — Sharing the Road, Bicyclists
4. You see a motorcycle ahead with its turn signal blinking. Why should you wait before pulling out?
Correct answer: The signal may not cancel itself, so the rider may not be turning
Many motorcycle signals do not shut off on their own, so the rider may simply have forgotten to cancel it; wait until the turn actually begins.
Source: South Dakota Driver License Manual — Sharing the Road, Motorcyclists
5. A marked bike lane crosses the road you are about to enter. What does the manual tell you to do?
Correct answer: Yield the right-of-way to the bicycle lane
Give way where a bicycle path or lane meets the road, and stay out of that lane except for the narrow reasons the manual lists.
Source: South Dakota Driver License Manual — Sharing the Road, Bicyclists
6. What does the manual point out about the operator of farm machinery on a rural highway?
Correct answer: They cannot hear vehicles approaching from behind
The operator cannot hear a vehicle coming up from behind, so pass with care.
Source: South Dakota Driver License Manual — Sharing the Road, Slow-Moving Vehicles
7. You come up behind a horse-drawn wagon on a rural road. What does the manual tell you to avoid?
Correct answer: Sounding the horn or revving the engine
Do not sound the horn or rev the engine, because the noise can frighten the animal and cause a crash; pass carefully instead.
Source: South Dakota Driver License Manual — Sharing the Road, Slow-Moving Vehicles
8. What rule of thumb does the manual give for knowing whether a truck or bus driver can see you?
Correct answer: If the driver's face is not visible in the side mirror, you cannot be seen
If that driver's face is not visible to you in their side mirror, then you are hidden from them.
Source: South Dakota Driver License Manual — Sharing the Road, Large Trucks and Buses
9. What does the manual say about stopping on a runaway truck ramp or in its entrance?
Correct answer: It is illegal and may block a truck that has lost its brakes
Parking there is illegal and dangerous because it can deny a driver with failed brakes the escape they need.
Source: South Dakota Driver License Manual — Sharing the Road, Runaway Truck Ramps
10. Why does the manual tell drivers never to share a lane with a motorcycle?
Correct answer: Because the rider needs the full lane width to react to traffic
A rider needs the whole width of the lane to move around and respond to traffic.
Source: South Dakota Driver License Manual — Sharing the Road, Motorcyclists
11. A truck ahead of you swings left before making a right turn at an intersection. What should you do?
Correct answer: Wait until the truck has completed its turn
Stay back and let the truck finish, because slipping into the space between the truck and the curb risks being squeezed.
Source: South Dakota Driver License Manual — Sharing the Road, Large Trucks and Buses
12. You are overtaking a bicycle on a South Dakota street posted at 30 mph. How much clearance does the law require?
Correct answer: Three feet
Where the posted limit is 35 mph or less the driver must leave three feet between the right side of the vehicle and the left side of the bicycle; above that limit the minimum grows to six feet.
Source: South Dakota Driver License Manual — Sharing the Road, Bicyclists
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Every South Dakota question is written from the official South Dakota driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free