• 10 questions, from the 81-question General Knowledge bank, one for each key manual topic
  • Practice mode: the correct answer and manual reference show after each question
  • 80% is a pass, the same standard as the real South Dakota CDL knowledge test

Takes about 3 minutes. Keyboard: A to D to answer, Enter for next.

About the South Dakota CDL knowledge test

The General Knowledge test is the written exam every CDL applicant sits, whatever class of license they are working toward. The questions come from the South Dakota CDL manual, they are multiple choice, and you need 80% to pass. Your state licensing agency gives the test, and passing it is what earns your commercial learner's permit, the permit you hold before taking the skills test in a truck.

What it covers

Our 10 free questions and the full 81-question General Knowledge bank are drawn from these manual sections:

Endorsements such as HazMat, Tank, Passenger and School Bus are separate written tests on top of this one. See which South Dakota CDL endorsements you need before you book anything, because the endorsement you are missing decides which tests you sit.

Requirements around the permit differ by state: how long you must hold it before the skills test, how long it stays valid, and what you bring to the office. Check your own agency's CDL page for the details that apply to you.

Where to go next

Work out which license class you need, then study the test that goes with it:

Common questions

What score do I need to pass the South Dakota CDL knowledge test?

You need 80% to pass. Miss more than that and you retake the test, so the goal while studying is to be comfortably above 80%, not just at it.

Where do I take the South Dakota CDL knowledge test?

At your state licensing agency. Passing the General Knowledge test is what earns your commercial learner's permit, which you hold before the skills test.

Is this free test the real South Dakota CDL exam?

No. These are 10 real questions from the same General Knowledge bank our paid study material uses, so the style and difficulty match what you are studying for. The official exam is given only by your state licensing agency.