South Dakota DMV · Permit Test Prep
South Dakota DMV Practice Test 2026
Updated for 2026 · Sourced from the official South Dakota handbook
The South Dakota knowledge test is a 25-question multiple-choice exam drawn from the official South Dakota Driver License Manual, covering traffic laws, road signs, and safe-driving practices. You need 80% (20 of 25) to pass, and South Dakota does not impose a published time limit on the written test. South Dakota lets teens start early — you can apply for an instruction permit at age 14 — so the graduated-licensing rules catch a lot of first-timers off guard. Work through the real, manual-sourced practice questions below, then download DMV Ace for 1,000+ more South Dakota-specific questions, progress tracking, and a full explanation on every answer.
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Source: Official South Dakota Driver License Manual (dps.sd.gov)
Topics covered on the South Dakota DMV written test
The 25 questions on the real South Dakota test are drawn from these chapters of the official South Dakota Driver Handbook.
Alcohol, Other Drugs, and Driving
BAC limits, South Dakota's zero-tolerance rule for drivers under 21, implied consent, and how impairment slows reaction time and judgment.
Traffic Signs and Signals
Regulatory, warning, and guide signs; traffic lights, flashing signals, and pavement markings.
Right-of-Way and Intersections
Yielding rules, left turns across oncoming traffic, four-way stops, and searching all corners before entering an intersection.
Speed and Space Management
Stopping distance, following distance, keeping a cushion of space, and adjusting speed to traffic and road conditions.
Sharing the Road
School buses, pedestrians, bicyclists, motorcycles, and large trucks with their wide turns and large blind spots.
Driving in Adverse Conditions
Night driving, rain, fog, snow, ice, reduced visibility, and using low-beam headlights correctly.
Turning, Passing, and Lane Changes
Signaling, checking mirrors and blind spots, safe passing on two-lane roads, and parking on hills.
Driver Readiness and Distractions
Fatigue, distracted driving, securing loose loads, and the responsibilities that come with a South Dakota license.
Practice Questions
12 free South Dakota DMV practice questions
Real South Dakota-specific questions sourced from the official South Dakota Driver Handbook. Read each one, pick your answer, then check the explanation.
Question 1 · DUI Laws
What is the only way to remove alcohol from your body?
- ADrinking coffee
- BTime — the body eliminates it at a fixed rate✓ Correct
- CTaking a cold shower
Why: There is nothing you can do to speed up the rate at which your body removes alcohol. Only time can lower your blood alcohol concentration (BAC) — coffee, food, and cold showers do not help.
Source: South Dakota Driver Handbook, page 17 · Alcohol, Other Drugs, and Driving
Question 2 · Speed Limits
Why is excessive speed especially dangerous?
- AIt saves fuel
- BIt increases stopping distance and crash severity✓ Correct
- CIt reduces engine wear
Why: The faster you travel, the more time and distance you need to stop. Excessive speed increases both your total stopping distance and the severity of any crash.
Source: South Dakota Driver Handbook, page 47 · Stopping Distance
Question 3 · Weather & Visibility
On slippery roads, what should you increase?
- AYour speed to reduce time on the road
- BYour following distance for more stopping room✓ Correct
- CYour radio volume to stay alert
Why: On slippery roads, leave more space in front of you because you need extra distance to stop safely. Tires grip far less on wet, snowy, or icy surfaces.
Source: South Dakota Driver Handbook, page 48 · Space in Front
Question 4 · Right of Way
When making a left turn at an intersection, who has the right-of-way?
- AThe left-turning vehicle
- BOncoming traffic going straight✓ Correct
- CThe vehicle that arrived last
Why: When making a left turn, you must yield to oncoming traffic. Vehicles approaching from the opposite direction and going straight have the right-of-way.
Source: South Dakota Driver Handbook, page 28 · Yielding Right-of-Way
Question 5 · Pedestrian Laws
What must you do when approaching a pedestrian using a white cane?
- AHonk to alert them
- BStop and yield — they may be blind✓ Correct
- CProceed normally
Why: A white cane or a guide dog indicates a pedestrian who may be blind. You must stop and yield until that person has safely crossed the roadway.
Source: South Dakota Driver Handbook, page 58 · Pedestrians
Question 6 · Parking Rules
When parking uphill with a curb, which way should you turn the wheels?
- ASharply to the right toward the curb
- BSharply to the left so the vehicle rolls into the curb✓ Correct
- CStraight ahead for easy departure
Why: Turn your wheels sharply to the left when parking uphill next to a curb. If the vehicle rolls backward, the rear of the curb-side tire will catch the curb and stop it.
Source: South Dakota Driver Handbook, page 40 · Parking on a Hill
Question 7 · Sharing the Road
On a two-lane road, when must you stop for a school bus?
- AOnly when traveling behind the bus
- BWhen traveling in either direction unless separated by a barrier✓ Correct
- COnly during school hours
Why: On a two-lane road you must stop for a school bus showing flashing red lights whether you are behind it or approaching from the opposite direction, unless a physical barrier separates the roadway.
Source: South Dakota Driver Handbook, page 40 · Rules for School Buses
Question 8 · Turns & Intersections
Before entering an intersection, where should you look?
- AOnly at the traffic signal
- BLeft, then right, then left again before proceeding✓ Correct
- COnly in the direction you are turning
Why: Look left, then right, then left again before entering an intersection. Checking left last helps you spot vehicles approaching from the nearest lane of cross traffic.
Source: South Dakota Driver Handbook, page 36 · Intersections
Question 9 · Highway Driving
Why do large trucks require more stopping distance?
- ATruck drivers react more slowly
- BTrucks have greater weight and momentum✓ Correct
- CTruck brakes are less effective
Why: Large trucks need much more distance to stop because of their greater weight and momentum. Their blind spot directly behind can extend as far as 200 feet, so never tailgate one.
Source: South Dakota Driver Handbook, page 48 · Cushion of Space
Question 10 · Lane Changes & Passing
When changing lanes, why must you check your blind spot?
- AMirrors show all areas around the vehicle
- BVehicles can hide in areas mirrors cannot cover✓ Correct
- CBlind spots only exist on large trucks
Why: Blind spots are areas around your vehicle that you cannot see in your mirrors. Turn your head to look over your shoulder for hidden vehicles before you change lanes.
Source: South Dakota Driver Handbook, page 42 · Changing Lanes
Question 11 · Accidents & Emergencies
Why does tailgating frustrate other drivers and cause crashes?
- AIt reduces fuel efficiency for both vehicles
- BIt limits your vision and leaves no time to react✓ Correct
- CTailgating is only dangerous at high speeds
Why: Following too closely limits your view of the road ahead and does not leave enough time to react and stop, which is a common cause of rear-end crashes.
Source: South Dakota Driver Handbook, page 48 · Space in Front
Question 12 · Traffic Signs & Signals
What does a steady green traffic light mean?
- AProceed without checking for traffic
- BYou may go but must yield to traffic and pedestrians already in the intersection✓ Correct
- CSpeed up before it turns yellow
Why: A steady green light means you may proceed through the intersection, but you must first yield to pedestrians, emergency vehicles, and any traffic already in the intersection.
Source: South Dakota Driver Handbook, page 29 · Traffic Signals
988+ more South Dakota practice questions in the app
Download DMV Ace — FreeSouth Dakota-specific rules to know
A few traffic rules that are particular to South Dakota and frequently show up on the test.
Instruction permit at age 14
South Dakota allows teens to apply for an instruction permit at just 14 years old after passing the vision and knowledge tests — one of the youngest permit ages in the country.
Restricted minor's permit night curfew
A restricted minor's permit holder may not drive between 10:00 PM and 6:00 AM unless accompanied by a licensed parent or guardian in the front seat, or when driving directly to or from work.
Zero tolerance for drivers under 21
It is illegal for anyone under 21 to drive with a blood alcohol concentration of 0.02% or higher. The general limit for drivers 21 and older is 0.08%, and refusing a chemical test triggers South Dakota's implied-consent license revocation.
Three-foot bicycle passing law
When passing a bicyclist, South Dakota drivers must leave at least three feet of space on roads posted 35 mph or less, and at least six feet of space on roads posted above 35 mph.
Stay back 200 feet from snowplows
On roads posted 35 mph or higher, you must stay at least 200 feet behind a snowplow displaying flashing red or amber lights — a rule built for South Dakota's hard winters.
How to get your South Dakota driver's license
The knowledge test is one step in South Dakota's licensing process. Here's how the path typically works for a new driver.
Check the age and eligibility requirements
Eligibility in South Dakota: 14 for an instruction permit; 14 years 3 months for a restricted minor's permit; 16 for a full operator's license. Have your proof of identity, residency, and any required parental consent ready.
Study the official handbook
Read the Official South Dakota Driver License Manual (dps.sd.gov) and practice with DMV Ace until you're consistently scoring above 80%.
Pass the knowledge test
The South Dakota written test has 25 questions, and you need 20 correct (80%) to pass. Permit/licensing fee: $28.
Build supervised driving experience
Hold your permit for the period South Dakota requires and log supervised driving hours with a licensed adult before you schedule the road test.
Pass the road test and get licensed
After you pass the behind-the-wheel road test, South Dakota issues your driver's license — often an intermediate/provisional license first for younger drivers.
Steps are a general guide — always confirm the current process with your local South Dakota DMV office.
How DMV Ace prepares you for the South Dakota test
1,000+ South Dakota-specific questions
Every question is sourced from the official South Dakota Driver Handbook — same wording style, same topic mix as the real test.
Explanations on every answer
Right or wrong, you see exactly why — with a handbook page citation so you can dig deeper.
Hard Questions module
A curated bank of the trickiest South Dakota questions — the ones most testers fail. Master these and you're ready.
Smart progress tracking
See exactly which topics you've mastered and which need work. A pass-readiness score tells you when you're truly ready for the South Dakota DMV.
FAQ
South Dakota DMV permit test — common questions
How many questions are on the South Dakota knowledge test?
- The South Dakota knowledge test has 25 multiple-choice questions. You must answer at least 20 correctly (80%) to pass. There is no published time limit, but most testers finish in 15-30 minutes.
What's the passing score for the South Dakota permit test?
- 80% — meaning you can miss no more than 5 of the 25 questions. The threshold is the same for first-time testers and retakes.
What's the minimum age to get a learner's permit in South Dakota?
- You can apply for an instruction permit at age 14 after passing the vision and knowledge tests. A restricted minor's permit follows at 14 years 3 months, and a full operator's license is available at 16.
Can I take the South Dakota knowledge test online?
- No. The South Dakota knowledge test is taken in person at a Driver Exam Station. Check dps.sd.gov for exam-station locations and appointment information.
How many times can I retake the South Dakota test if I fail?
- If you fail, you must wait at least one day before trying again. The first three attempts are covered by your original fee; after three failed attempts you must pay a new fee to keep testing.
How much does a South Dakota instruction permit cost?
- The instruction permit fee is $28 as of 2026. Always confirm the current amount on the South Dakota Department of Public Safety fees page at dps.sd.gov.
What is the night curfew for a restricted minor's permit?
- A restricted minor's permit holder may not drive between 10:00 PM and 6:00 AM unless a licensed parent or guardian is in the front seat, or unless driving directly to or from work.
Does South Dakota have a zero-tolerance alcohol law for teens?
- Yes. It is illegal for any driver under 21 to operate a vehicle with a BAC of 0.02% or higher. The limit for drivers 21 and older is 0.08%, and refusing a chemical test triggers an automatic license revocation under implied-consent law.
Coming Soon
South Dakota motorcycle permit test prep
Studying for your motorcycle endorsement instead? Dedicated South Dakota motorcycle practice is coming to DMV Ace soon — meanwhile, the app already includes full motorcycle question banks for every state.
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