Your Progress

  • 0 Incorrect (6 allowed to pass)
  • 0 Correct
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
  • 0 Incorrect (6 allowed to pass)
  • 0 Correct
Restart
 
 
 
 
 
Ask DMV Genie AI
new
Back to Program Home

Free South Dakota CDL Air Brakes Test (SD)

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2024 SD commercial driver's license manual
  • Updated for June 2024
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Commercial Driver's License

About this test

9 min to complete
Available in EN and ES

After you receive your air brake qualification, you can start looking for bigger and better paying jobs since you’ll stand out more in your field. But the first step is passing your air brake exam. And the first step to passing the exam is to study and take practice exams. This multiple-choice format practice exam features 30 questions written with information directly from the South Dakota Commercial Driver License Manual. Each explanation that accompanies the question contains information that you need to answer future questions correctly on your real air brake exam, so read them all closely. Study until you feel comfortable, and visit as often as necessary until your score reflects that you will pass with flying colors. Good luck on your exam, and drive safely, with and without air brakes soon!

To fully understand the Air Brakes endorsement process and to master the material for the written exam, explore our detailed guides on the Air Brake endorsement and the Air Brakes written test.

What to expect on the actual SD CDL exam

25

questions

20

correct answers to pass

80

passing score

Your trusted source for driver education

Experience the Driving-Tests difference
Since our foundation in 2010, Driving-Tests.org has led the way in online driver's education, with over a decade of experience. Our dedicated experts, bringing together more than 50 years of collective expertise, have established us as the largest non-governmental organization in the U.S. solely focused on driver education. We go beyond the official manuals, offering unique interactive experiences and support like audio guides and an AI Assistant, to cater to different learning styles and needs.
Helping hundreds of thousands to ace their tests, our resources have earned a 4.7-star rating from over 14,500 reviews. Our goal is to make your path to becoming a confident driver as straightforward and effective as possible.