South Dakota Car / Permit practice
South Dakota Car / Permit: Speed & Space Management practice test
Choosing a safe speed, keeping a space cushion, adjusting for weather and traffic, and understanding stopping distance.
Content reviewed against official driver handbooks · August 12, 2026
14 questions · pass with 11 correct. You get instant feedback and an explanation after every answer.
Choose your level
Up to 20 questions on this topic, with feedback after every answer.
Study questions with answers
12 sample Speed & Space Management 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. What is the manual's rule about how many vehicles to pass at once, and on which side?
Correct answer: One at a time on the left
Handle them one vehicle at a time, always going by on the left; the shoulder is never a passing lane, paved or not.
Source: South Dakota Driver License Manual — General Driving, Passing
2. You come to a stretch of road covered by standing floodwater. What does the manual tell you to do?
Correct answer: Turn around and take a different route
Do not drive into large standing water; find another route to your destination.
Source: South Dakota Driver License Manual — Safe Driving Tips, Speed Management
3. How much should you add to your following interval when driving at night?
Correct answer: At least one extra second
Add at least one extra second after dark, and at least two extra when the road is unfamiliar.
Source: South Dakota Driver License Manual — Special Driving Situations, Night Driving
4. How should you use an acceleration lane when joining a high-speed roadway?
Correct answer: Use it to reach the speed of traffic before merging
Build up to the speed of the traffic already there before you merge, rather than running to the end of the lane and stopping.
Source: South Dakota Driver License Manual — General Driving, Adjusting to Traffic and Interstate Driving
5. What tells you it is safe to move back into your lane after passing?
Correct answer: Both headlights of the passed vehicle show in your rearview mirror
Both headlights of the vehicle you just passed become visible in your rearview mirror.
Source: South Dakota Driver License Manual — Safe Driving Tips, Space to Pass
6. At 55 mph, how large a gap in oncoming traffic does the manual say you need in order to pass?
Correct answer: About 10 seconds
You need roughly ten seconds of clear road, which works out to more than 1,600 feet, or about a third of a mile.
Source: South Dakota Driver License Manual — Safe Driving Tips, Space to Pass
7. When should you reduce speed for a curve?
Correct answer: Before entering the curve
Slow before you enter it so you can hold a light, steady acceleration through the bend; braking hard once inside can break traction.
Source: South Dakota Driver License Manual — Safe Driving Tips, Speed Management
8. What three elements make up total stopping distance?
Correct answer: Perception, reaction and braking
The distance covers the time to recognize a stop is needed, the time to move your foot and apply the brakes, and the distance the brakes need to bring the vehicle to rest.
Source: South Dakota Driver License Manual — Safe Driving Tips, Stopping Distance
9. How close to a hill or curve does the manual say you should never begin a pass?
Correct answer: Within one-third of a mile
Do not begin a pass when a hill or curve sits less than about a third of a mile away; treat that blocked view as though a vehicle were already hidden behind it.
Source: South Dakota Driver License Manual — Safe Driving Tips, Space to Pass
10. What is the minimum following interval the South Dakota manual recommends behind the vehicle ahead?
Correct answer: Four seconds
Keep at least four seconds of space between you and the vehicle in front.
Source: South Dakota Driver License Manual — Safe Driving Tips, Cushion of Space (Space Management)
11. When should you cut your speed for rain, snow, sleet or ice?
Correct answer: At the first sign of it
Reduce speed as soon as the first sign of it shows, because tires lose grip and both stopping and turning get harder.
Source: South Dakota Driver License Manual — Safe Driving Tips, Speed Management
12. With good brakes on dry pavement at 50 mph, roughly how far does the manual say the braking part alone takes?
Correct answer: About 158 feet
About 158 feet is needed for the brakes to bring the vehicle to rest under those conditions.
Source: South Dakota Driver License Manual — Safe Driving Tips, Stopping Distance
More Car / Permit topics
Practice Speed & Space Management in another state
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