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SC CDL General Knowledge Practice Test 3 2025

Average pass rate for CDL tests in South Carolina: 59%.
Average pass rate for this test: 67%.
Easy
5 min
Score distribution:
90-100=>9%
80-89=>14%
70-79=>36%
60-69=>23%
<60%=>18%
Avg. first-try score: 74%

This third SC General Knowledge practice test contains another set of 50 multiple-choice questions based on the official CDL manual. Just like our other practice tests, this one is also designed to prepare you for the General Knowledge portion of your 2025 Commercial Driver’s License exam. There are several answer options, but only one of them is correct. Each question also includes a hint and an explanation. It is recommended that you check each question’s explanation to gain some further insight into the rule being tested. Every time you answer a question, you’ll get immediate feedback with a detailed explanation, so you won’t need to wait until the end of the test to know the correct answers. Good luck and drive safely!

SC CDL General Knowledge Practice Test 3 2025
Commercial Driver's License
Based on the official SC CDL HandbookHandbook‑based (2025) + exam‑taker feedback
26 SC students practicing now
•77completed today

Accuracy & authorship

Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Reviewed for legal and handbook accuracy:

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Andrei Zakhareuski, Co-founder & CEO at Driving-Tests.org

Test design and learning experience oversight:

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the South Carolina DMV changes its handbook or website information.

Official sources we check: South Carolina CDL Handbook (2025 edition), South Carolina DMV website

How to use this practice test

  1. Start here. One of 4 free South Carolina tests. ~5 min. Read explanations as you go.
  2. Cover more ground. All tests have different questions - no repeats.
  3. Finish strong. Try the Exam Simulator for a full-length run.

Why this works

  • Exam-like questions from the current handbook + real test-taker patterns. Explanations cite the manual.
  • AI Assistant explains tricky items in plain language.
  • Performance Insights show your weak topics and what to study next.
  • Challenge Bank™ saves your mistakes for targeted practice.

Actual DMV permit test: What to expect?

The South Carolina permit test has 50 questions. You must get 40 correct (80%) to pass.
  • Where: Any South Carolina DMV office (find locations)
  • Bring: ID + SSN + residency proof + permit/license fee (see checklist)
  • If you fail: Retake after 2 days.
  • Commonly missed: yielding to pedestrians and bicyclists, emergency vehicle right-of-way, and safe following distance.
  • Ready to schedule? Book your SC DMV appointment

Real South Carolina drivers who passed first try

Verified student reviews • Shared with permission

I passed my hazmat test with a 100.
I highly recommend this website. They have the CDL manual, by the testee state, to read or download and a three hour video course. The video course essentially covers the same topics as the CDL manual but in more detail. There's five practice exams, marathon exam that covers all 190 questions, and the DDS hazmat simulator. There's a challenge bank that keeps all the question that the testee might struggle on.
GM
Finished all test below 45 mins.
I tried to take the CDL knowledge test and endorsements with only reading the drivers study book from DMV and failed miserably. I had to find something quick to pass these test. I found driving-tests.org and what a great website. I played around with the practice tests and I said to myself this is just like the DMV test. So I went ahead and studied for 2 days getting 100% on all the practice tests and exams. I took the test at DMV with confidence and pass all 5 test to get my permit and the endorsements plus my real ID.
RC
I gave driving-tests.org 5 stars….
(I wish there was something higher than 5 stars) because the program was very user friendly and I had fun learning. I started it eleven days before my written CLP (commercial learner permit) tests for Class B which included general knowledge, air brake, and passengers endorsement. I took the tests on October 25th and passed with flying colors so I now have my CLP with "P" endorsement. I had the DMV manual and it was so overwhelming to me so that is why I did a Google search for CDL tests and I found your company.
EB
5 STARS This IS NOT Fake NEWS!
I decided to roll the dice and try to pass before then. I took my CDL exam on Feb 3rd. I also took the School Bus, Passenger and Air Brake endorsement exams. I am happy to say that i passed all the exams with flying colors! I literally got 100% on the general knowledge test. I am generally a very good test taker but I can assure you that without this website and all of the practice tests, I would have failed miserably. The CDL book from DMV is awful. You cannot read that and think you're gonna pass. Just an FYI: I tried some of the free practice tests online from other sites. They are NOT the same as the test questions on the real exam. The practice questions on this site were mostly identical to the real questions on the test. You will not regret it.
FG

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