Free South Carolina CDL practice test with real commercial driving questions. Prepare for your South Carolina CDL exam — General Knowledge, Air Brakes, HazMat, and all endorsements. Updated for 2026.
The South Carolina DMV CDL knowledge test has 50 questions for General Knowledge, with additional 20–30 question tests for each endorsement (Air Brakes, HazMat, Tanker, etc.). You need 80% to pass each section. South Carolina has the lowest permit fee in the U.S. — just $2.50 for the knowledge test.
The South Carolina DMV knowledge exam tests your understanding of South Carolina traffic laws, road signs, and safe driving practices. DriveAce covers every topic you'll encounter on test day.
Vehicle inspection, cargo management, driving techniques, and documentation for South Carolina CDL.
Air brake system components, inspection, emergency stops, and maintenance tested by the South Carolina DMV.
Hazardous materials classification, placarding, loading/unloading rules for South Carolina CDL endorsement.
Liquid surge, rollover prevention, loading and unloading procedures for South Carolina tanker endorsement.
Coupling, uncoupling, stability, and safe driving with multiple trailers under South Carolina CDL rules.
Passenger safety, school bus operations, railroad crossings, evacuation for South Carolina CDL.
The South Carolina DMV CDL General Knowledge test has 50 questions. You need 80% (40 correct) to pass. Each CDL endorsement — Air Brakes, HazMat, Tanker, Doubles/Triples, Passenger, School Bus — has an additional 20–30 question test, each also requiring 80%.
DriveAce covers all major South Carolina CDL endorsements: General Knowledge, Air Brakes, HazMat (Hazardous Materials), Tanker Vehicles, Doubles/Triples, Passenger Vehicles, and School Bus. All practice questions are based on South Carolina DMV CDL requirements.
Yes — DriveAce offers free CDL practice questions for South Carolina. Study General Knowledge and endorsement-specific questions that mirror the real South Carolina DMV CDL exam. Full access to all practice questions is available for a one-time $19.99 fee.
You need to score 80% on the South Carolina CDL General Knowledge test and each endorsement test. DriveAce practice tests use the same 80% passing threshold, so you always know when you're ready for the real exam at the South Carolina DMV.
Join thousands of drivers who passed their South Carolina CDL exam on the first try with DriveAce. No subscription. No ads. Just the knowledge you need.
Start Free Practice Test →$19.99 one-time for full access. 20 free questions included.