1. It is illegal for a driver age 21 or older to operate a vehicle with a BAC of ____ or higher.
- 0.02%
- 0.08%
- 0.10%
Explanation: South Dakota's BAC limit is 0.08% for drivers 21 and older. Drivers under 21 face zero tolerance at 0.02%.
South Dakota DMV is administered by the South Dakota Driver Licensing Program, headquartered in Pierre. The official South Dakota written knowledge exam has 25 questions, and drivers must answer 20 correctly (80%) to pass. Our practice tests match the exact format, topics, and difficulty of the real South Dakota DMV test.
What makes the South Dakota DMV test unique?
South Dakota's exam emphasizes wildlife collisions (Black Hills deer population), Sturgis-week traffic protocols, and tribal-land driving rules.
South Dakota allows a restricted minor permit at age 14 — among the earliest in the nation — for rural access to school and work.
Wildlife collision avoidance (brake, don't swerve) is heavily tested.
Browse all South Dakota questions
278 indexed questions with full answers, explanations, and law citations.
What does this sign indicate?
US DMV standard (applies in all states)
What does this sign indicate?
US DMV standard (applies in all states)
What does this sign indicate?
US DMV standard (applies in all states)
What does a Wrong Way sign indicate?
US DMV standard (applies in all states)
What does a ONE WAY sign indicate?
US DMV standard (applies in all states)
What does this sign means?
US DMV standard (applies in all states)
What does a Speed Limit sign indicate?
US DMV standard (applies in all states)
What does this sign mean?
US DMV standard (applies in all states)
What does a railroad crossbuck sign indicate?
US DMV standard (applies in all states)
What does a PEDESTRIAN CROSSING sign indicate?
US DMV standard (applies in all states)
Blue signs usually provide information about ____.
Alabama Driver Manual
What do brown signs generally indicate?
US DMV standard (applies in all states)
Children should ride in ____.
US DMV standard (applies in all states)
Alcohol affects driving by ____.
Alabama Driver Manual
Which option is NOT a good way to reduce distraction?
US DMV standard (applies in all states)
What should you do before driving after taking medicine?
Alabama Driver Manual
What should you do if an oncoming vehicle's headlights are bright?
US DMV standard (applies in all states)
In fog you should generally use ____.
US DMV standard (applies in all states)
What should you do if your vehicle starts to skid?
US DMV standard (applies in all states)
On snow or ice you should ____.
Alabama Driver Manual
What should you do if you encounter a flooded roadway and cannot judge its depth?
Alabama Driver Manual
What should you do if your vehicle breaks down?
Alabama Driver Manual
If your brakes fail, you should first ____.
US DMV standard (applies in all states)
What is an appropriate response after a crash?
US DMV standard (applies in all states)
What should you do if road or weather conditions are poor?
Alabama Driver Manual
Why is tailgating dangerous?
Alabama Driver Manual
What should you do before passing another vehicle?
Alabama Driver Manual
When should you NOT pass another vehicle?
Alabama Driver Manual
Large trucks or motorcycles in front of you often require ____.
Alabama Driver Manual
What should you do when approaching a stopped emergency or service vehicle with flashing lights?
US DMV standard (applies in all states)
Which statement about roadside emergency scenes is NOT correct?
US DMV standard (applies in all states)
Before changing lanes or merging you should check ____.
US DMV standard (applies in all states)
Good steering control begins with ____.
US DMV standard (applies in all states)
What should you do if you miss your freeway exit?
Alabama Driver Manual
What is the purpose of a speed limit?
US DMV standard (applies in all states)
Why is following distance important?
US DMV standard (applies in all states)
When two vehicles arrive at an uncontrolled intersection at about the same time, who should usually go first?
US DMV standard (applies in all states)
At a four-way stop, the vehicle that should go first is usually the one that ____.
US DMV standard (applies in all states)
What should you do if you see a blind pedestrian using a white cane or guide dog?
US DMV standard (applies in all states)
What should you do when an emergency vehicle approaches with siren or flashing lights?
US DMV standard (applies in all states)
What should you do when entering a roundabout?
US DMV standard (applies in all states)
If you approach a yield sign, you must ____.
Alabama Driver Manual
When a stopped school bus is using red warning signals and a stop arm, what is the correct response?
US DMV standard (applies in all states)
Which statement about a school bus stopped with red warning signals is NOT correct?
US DMV standard (applies in all states)
Which statement about roundabouts is NOT correct?
US DMV standard (applies in all states)
What does it mean to 'yield the right-of-way'?
US DMV standard (applies in all states)
What is the purpose of right-of-way rules?
US DMV standard (applies in all states)
What does it mean when a pedestrian has the right-of-way in a crosswalk?
US DMV standard (applies in all states)
What should you do before making a left turn?
Alabama Driver Manual
What should you do before backing your vehicle?
US DMV standard (applies in all states)
What should you do when parking on a hill?
US DMV standard (applies in all states)
What should you do when not park?
Alabama Driver Manual
When should you cancel your turn signal?
Alabama Driver Manual
What should you do when preparing for a turn?
Alabama Driver Manual
What does 'parallel parking' mean?
US DMV standard (applies in all states)
What does a red curb indicate?
US DMV standard (applies in all states)
What does a yellow curb indicate?
US DMV standard (applies in all states)
What is the purpose of handicap parking spaces?
US DMV standard (applies in all states)
What does it mean to 'double park'?
US DMV standard (applies in all states)
What should you do when make a U-turn only?
US DMV standard (applies in all states)
A motorcycle is entitled to ____.
Alabama Driver Manual
Why should you watch carefully for motorcycles?
Alabama Driver Manual
Large trucks have ____.
US DMV standard (applies in all states)
What should you do when waiting behind another vehicle at railroad tracks?
US DMV standard (applies in all states)
What does 'sharing the road' mean for drivers?
US DMV standard (applies in all states)
What is a 'bike lane' and what does it mean for drivers?
US DMV standard (applies in all states)
What does 'vulnerable road user' mean?
US DMV standard (applies in all states)
What is the meaning of a 'no-zone' around large trucks?
US DMV standard (applies in all states)
What does it mean to 'share the road with motorcycles'?
US DMV standard (applies in all states)
Which of the following is true about sharing the road with cyclists?
US DMV standard (applies in all states)
Which of the following is true about pedestrian right-of-way?
US DMV standard (applies in all states)
What should you do when avoid cutting in front of a large truck because?
Alaska Driver Manual
Real-format questions with the reasoning behind every answer.
Explanation: South Dakota's BAC limit is 0.08% for drivers 21 and older. Drivers under 21 face zero tolerance at 0.02%.
Explanation: South Dakota requires low beams whenever you are closer than 500 feet behind a vehicle you are following, the same distance as for oncoming vehicles.
Explanation: A diamond marking on the pavement or on signs identifies a reserved lane, most commonly a high-occupancy vehicle (carpool) lane. Check posted signs for who may use it and when.
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