Looking for a free CDL practice test? Start with Class A knowledge — General Knowledge, Air Brakes, and Combination — before chasing endorsements. Free timed practice, no login.
Format notes (verify by state)
- Typical counts vary by state (often ~50 GK / ~25 Air Brakes / ~20 Combination)
- Many states are untimed by default; our scaffolds may offer optional timers
- Federal knowledge pass line: 80% per 49 CFR §383.135 (verify)
- First-time applicants: know ELDT (49 CFR Part 380 Subpart F)
How to practice
- Run General Knowledge, then Air Brakes and Combination mocks.
- Review the cheat sheet and study plan.
- Read CDL study guide notes citing FMCSA / CFR.