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South Carolina CDL Class B Practice Test 2025

Average pass rate for CDL tests in South Carolina: 59%.
Average pass rate for this test: 52%.
Hard
9 min
Score distribution:
90-100=>50%
80-89=>0%
70-79=>0%
60-69=>50%
<60%=>0%
Avg. first-try score: 94%

Welcome to our South Carolina CDL Class B Practice Test! This intuitive tool can significantly boost your learning potential and help you prepare for your dream career. Consisting of 50 questions, this practice test closely reflects the content and format of the official general knowledge exam. All questions have multiple answer choices, but only one is correct. They are based on the official South Carolina Commercial Driver License Manual (South Carolina CDL Handbook 2025), which you should read multiple times during your learning phase.

If you’re unfamiliar with commercial driving theory, you’re more likely to make mistakes. Do not let a failed attempt discourage you. With unlimited attempts and nonstop browser-based access, you can begin a new practice session right away. We give students the opportunity to learn from their mistakes by providing immediate feedback for each question. Once you select an answer, a detailed explanation will be provided. Please pay attention to this feedback and note it in a notebook or notebook app for future reference.

South Carolina CDL Class B Practice Test 2025
Commercial Driver's License
Based on the official SC CDL HandbookHandbook‑based (2025) + exam‑taker feedback
4 SC students practicing now
• 21 completed today
Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Authored and fact-checked by Steven Litvintchouk, M.S.

Chief Educational Researcher, Driving‑Tests.org (ACES member)

Last verified for accuracy on

Methodology & Editorial Policy

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

About the South Carolina CDL

Updated for December 2025, this practice test includes the most recent updates brought by DMV rules or state law. The official SC DMV website has the most up-to-date information on this subject. You should check this website occasionally, even after obtaining your CDL. Unlike the official general knowledge exam, this practice test is not timed. You can finish each practice session at your own pace. Read every question twice and only select an answer when you’re confident of your choice. As long as you’re not in private browsing mode, your progress will be automatically saved.

When enabled, the answer popularity feature displays the percentage of students who selected each option. This insight helps you identify difficult questions where misconceptions are common, so that you can focus your study more effectively. You can activate this feature and several others from the test settings menu, which can be accessed by clicking the three dots in the top-right corner of the page.

Every skilled commercial driver started as a beginner. Your knowledge can only be improved gradually, so there’s no point in rushing your studies. Dedicate plenty of time to your learning phase and master this subject with the help of our South Carolina CDL Class B Practice Test.

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A smarter way to study

Challenge Bank™

Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.

AI-powered feedback

Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.

Interactive handbook

Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.