Traffic Signs & Signals — North Carolina
North Carolina CDL practice test: 460 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. Traffic Signs & Signals: 3 questions.
Regulatory, warning and guide signs, plus traffic light and pavement marking questions.
This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.
| Topic / Metric | Value |
|---|---|
| Topic | Traffic Signs & Signals |
| License test | North Carolina CDL permit (CLP) knowledge tests |
| Topic questions | 3 (1% of 460 total) |
| Review status | This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines. |
Official handbook
Not yet verified
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Questions (3)
1. Which of the following is not a warning sign of fatigue?
- Difficulty focusing
- Staying within your lane ✓
- Rubbing your eyes
Answer: B. Staying within your lane
2. A driver should test the tractor protection valve by:
- Pulling the yellow, diamond-shaped knob.
- Releasing air with the brake pedal. ✓
- Unlocking the trailer doors.
Answer: B. Releasing air with the brake pedal.
3. A driver who stops at a green light could be:
- An impaired driver. ✓
- A driver who is color blind.
- A person who does not know the rules of the road.
Answer: A. An impaired driver.
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Source
Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook