Questions on Real Exam
25
NC DMV Manual
Minimum to Pass
20 Correct
80% passing threshold
Practice Questions
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Full module coverage
Test Location
Any DDS Center
Customer Service Center
What the North Carolina CDL Air Brakes Test Covers
The real North Carolina CDL Air Brakes exam has 25 questions, and you need 20 correct (80%) to pass. Skipping or failing it restricts you from operating any air brake-equipped vehicle. Topics tested include:
- Air brake system components
- Dual air brake systems
- Pre-trip inspection and testing
- Spring brakes
- Anti-lock braking systems (ABS)
- Braking technique and brake fade
- Mountain driving with air brakes
- Air brake regulations
- Emergency situations
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