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South Dakota DPS CDL General Knowledge Practice Tests

The general knowledge test every commercial driver license applicant takes. Practice with 5 tests built like the real South Dakota exam, then try the full simulation.

463 practice questions: South Dakota law plus the rules that apply in every state.

A highway through grasslands and rocky hills, a typical landscape of South Dakota

South Dakota CDL practice tests

South Dakota CDL exam simulator

Answer at your own pace. After each question you see the correct answer and why, and at the end a review of what you missed.

  • Random practice: 20 random questions; pass with 16 correct, the same ratio as the real test.
  • Exam simulation: 50 questions and a pass mark of 40, like the South Dakota CDL test.

About the South Dakota CDL test

DPS requires CDL applicants to be at least 18. Federal rule 49 CFR 383.135 sets the 80 percent passing score for CDL knowledge tests; DPS does not publish the number of items on the South Dakota general knowledge test.