Try 10 free South Carolina CDL questions
Real General Knowledge questions from the same bank our students use. No account, no email needed. You see the correct answer after each question, and your score at the end.
- 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 Carolina CDL knowledge test
Takes about 3 minutes. Keyboard: A to D to answer, Enter for next.
About the South Carolina 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 Carolina CDL manual, they are multiple choice, and you need 80% to pass. South Carolina Department of Motor Vehicles 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:
- Vehicle Inspection
- Basic Control of Your Vehicle
- Shifting Gears
- Seeing
- Communicating
- Controlling Speed
- Managing Space
- Seeing Hazards
Endorsements such as HazMat, Tank, Passenger and School Bus are separate written tests on top of this one. See which South Carolina CDL endorsements you need before you book anything, because the endorsement you are missing decides which tests you sit.
What South Carolina requires
- You must wait 14 days from the date the CLP was issued before the skills test.
- Retest waits: 2 business days after a first failure, 7 calendar days after a second, 30 calendar days after a third or later.
- SCDMV checks your record in PDPS, CDLIS, and the Drug and Alcohol Clearinghouse before issuing.
- No written material or electronic devices are allowed in the knowledge test area.
Checked against South Carolina Department of Motor Vehicles on September 16, 2026. Rules change, so confirm anything that affects your booking before you travel.
Where to go next
Work out which license class you need, then study the test that goes with it:
- South Carolina CDL classes: what Class A, B and C each let you drive.
- South Carolina CDL endorsements: H, N, P, S, T and X, and who needs each.
- South Carolina CDL study material: the full study guides, practice tests and narrated audio.
Common questions
What score do I need to pass the South Carolina 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 Carolina CDL knowledge test?
At South Carolina Department of Motor Vehicles. 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 Carolina 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 South Carolina Department of Motor Vehicles.