South Carolina CDL Practice Test
Free practice questions for the South Carolina commercial driver license written exams — general knowledge, air brakes, combination vehicles, and every endorsement.
South Carolina's Department of Motor Vehicles administers a straightforward and efficient driver licensing system designed to ensure new drivers understand traffic laws and safe driving principles. The written knowledge test is an essential component of obtaining your beginner's permit in South Carolina. Whether you're a teenager taking your first step toward driving independence or an adult learner, passing the knowledge test demonstrates your understanding of South Carolina's traffic regulations, road signs, and safe driving practices. South Carolina is known for having one of the lowest knowledge test fees in the nation at just $2.00, making it accessible to all applicants. Combined with the state's clear testing format and available study materials, most applicants can prepare effectively and pass on their first attempt.
About this section of the South Carolina test
South Carolina's commercial driver license (CDL) program requires applicants to be at least 18 years old. CDL applicants must take written knowledge tests for general knowledge, air brakes, and any applicable endorsements such as doubles/triples, tanker vehicles, passenger vehicles, or hazardous materials. The first step is obtaining a commercial learner's permit by passing knowledge tests. Skills tests and vision tests are also required for obtaining a full CDL.
Start practicing
Open the South Carolina practice test — pick car, motorcycle, or CDL, then drill quick quizzes or full simulated exams.
Read the source manual
Browse the official South Carolina driver manual — every practice question deep-links to the page that explains the rule.
Frequently asked questions
- How many questions are on the South Carolina permit test?
- The South Carolina knowledge test has 30 multiple-choice questions covering traffic laws, road signs, safe driving practices, and vehicle operation.
- What's the passing score for the South Carolina written test?
- You must get at least 24 correct answers out of 30 (80%) to pass the South Carolina knowledge test.
- How much does the South Carolina written knowledge test cost?
- The South Carolina knowledge test costs only $2.00, the lowest fee in the nation. If you pass, an additional $2.50 is charged for your beginner's permit. Retakes cost $2.50 each.
- How old do I have to be to take the South Carolina permit test?
- You must be at least 15 years old to take the South Carolina knowledge test for a beginner's permit.
- Can I take the South Carolina DMV test in Spanish or other languages?
- Yes, the South Carolina knowledge test is available in English, Spanish, Hindi, and Vietnamese. You must indicate your language preference when scheduling your appointment. If testing in a language other than English, you need to bring an interpreter who is at least 18, not a licensed driver, and has no vested interest in the test outcome.
- How many times can I retake the South Carolina written test?
- You can retake the test after each failure, but waiting periods increase: after the first failure, wait 2 days; after the second failure, wait 2 weeks; after the third or subsequent failures, wait 60 days before attempting again.
- Is the South Carolina permit test online or in person?
- The South Carolina knowledge test is administered in person at DMV offices using computerized testing stations. Some online practice tests are available, but the official test is in-person only.
- What documents do I need to bring to the South Carolina DMV?
- You need proof of U.S. citizenship/identity and date of birth, proof of Social Security Number, and proof of South Carolina residency. For a REAL ID permit, you'll need two proofs of residency. If under 18, a parent or guardian must sign consent in person at the DMV.
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