Texas CDL Air Brakes practice test
The Air Brakes test covers Section 5 of the Texas CDL handbook. Skip or fail it and your license carries the L restriction, no air brakes (p. ii); you need 80% to pass (p. iv).
Key facts
| Pass mark | 80% on this test | DL-7C p. iv |
|---|---|---|
| Order | After Combination, when required | DL-7C p. iv |
| Covers | Section 5: air brake parts, dual systems, inspection, use | DL-7C Section 5 |
| If you skip it | Restriction L: no air-brake vehicles | DL-7C p. ii |
Topics
What the Air Brakes test covers
Questions drivers ask
- What is on the CDL air brakes test?
- Section 5 of the handbook: the parts of an air brake system, dual air brake systems, inspecting air brakes and using air brakes.
- Source: Texas CDL handbook DL-7C, Section 5
- What does the L restriction on a CDL mean?
- L means no air brakes: you may not drive a commercial vehicle equipped with air brakes.
- Source: Texas CDL handbook DL-7C, p. ii
- Do I need the air brakes test for a Class A CDL?
- Texas gives it when required. Without it your license carries the L restriction, so you cannot drive air-brake vehicles.
- Source: Texas CDL handbook DL-7C, pp. ii and iv
Sources
Texas Commercial Motor Vehicle Drivers Handbook (DL-7C), revised March 2026, Texas Department of Public Safety. Page references are to its printed page numbers. CDL Mile is independent and not affiliated with Texas DPS.
Updated for the March 2026 Texas CDL handbook (DL-7C). Last checked November 4, 2026.
See where you stand on all four Texas tests.
A free 15-question check, then practice that targets your weak spots. $49 for 60 days if it helps.
Get my free score →