2025 South Dakota Permit Test 19
The following questions are from real DMV written tests. These are some of the actual permit questions you will face in South Dakota. Each permit practice test question has three answer choices. Select one answer for each question and select "grade this section." You can find this button at the bottom of the drivers license quiz. For a complete list of questions and answers for South Dakota please visit https://cheat-sheets.dmv-written-test.com/en/south-dakota/car.
Number of Tests
Number of Question
Passing Score
17. You are driving on the freeway behind a large truck. You should drive:
Explanation
It is necessary to follow farther behind a large truck than you would if following a passenger vehicle because trucks have larger blind spots.
18. You exit the freeway on a ramp that curves downhill. You should:
Explanation
You should always slow down before entering a curve. You may not be able to see hazards ahead and braking in a curve may cause your vehicle to skid.
19. The proper way to make a right turn is to:
Explanation
Before beginning a right turn, use the appropriate signal to give surrounding drivers adequate notice of your intentions. Slow down and approach the intersection from the right lane, staying as close as is practical to the right curb or edge of the roadway.
20. Any amount of alcohol in the blood may affect a driver's:
Explanation
A driver’s ability to safely operate a vehicle may be impaired at any BAC level, even a level lower than the legal limit. Any amount of alcohol can affect one’s judgment and physical coordination. Driving under the influence of even a small amount of alcohol can lead to criminal charges.
21. At a railroad crossing, you must:
Explanation
You must approach all railroad crossings with extreme caution and cross only when you know that no train is coming from either direction. Be aware of vehicles that must stop at all railroad crossings, such as school buses and trucks carrying hazardous materials.
22. Large trucks are likely to lose speed when:
Explanation
Because large trucks require more time to accelerate than smaller vehicles, trucks can lose speed driving up long or steep hills. Be cautious when driving behind a large truck and be sure to give the vehicle additional space, especially when driving on an incline.
23. When driving on a slippery surface, such as snow or ice:
Explanation
To prevent skidding on slippery surfaces, you should shift to a low gear before going down a steep hill. You should also follow farther behind the vehicle in front of you than you normally would. Quick stops should be avoided. Unless you have antilock brakes, pump the brakes to slow or stop.
24. If a road is slippery, maintain a following distance that is:
Explanation
You need a longer distance to stop your vehicle on a slippery road than you do on a dry road. Maintain an increased following distance when driving on slippery roads.
25. This road sign means:
Explanation
Regulatory signs provide notice to road users of traffic laws that must be obeyed. This particular sign tells you the maximum speed limit for the stretch of highway where it is posted. You may drive more slowly than the posted speed limit, based on road conditions, but it is illegal to drive any faster than the posted speed limit.
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