CDL Practice Test
Pass the Combination Vehicles test and earn your Class A
Every Class A applicant must pass this exam — no combination test, no tractor-trailer. These questions are written against the CDL manual combination-vehicles section and 49 CFR, with the citation attached: glad hands to fifth wheels, tractor protection valves to rollover prevention.
- Questions
- 30
- To pass
- 80%
- Modes
- Study · Timed
- Time limit
- 30 min (Timed mode)
Study Mode
Learn as you go — one question at a time. Answer, and the correct choice, a plain-English explanation, and the exact 49 CFR / CDL-manual citation appear immediately. Progress saves on this device.
Untimed · instant feedback · free
Timed Test
Exam conditions — 30 minutes on the clock, no feedback until you submit, answers changeable until the end. Explanations and citations are revealed with your score.
30 min · auto-submits at zero · 80% to pass
Been here before? Drill your bookmarks or your missed questions — saved on this device, no account needed.