The real North Carolina knowledge test is the DMV exam used for a learner permit. This page contains one fixed 20 question slice of the full free 180 question bank, with an explanation after each answer.
Sample question from test 5
signs
What do black-on-orange diamond-shaped signs warn drivers about?
- Construction or maintenance areas
- Railroad crossings
- Hospital services
- Mandatory speed limits
Answer: Construction or maintenance areas. The handbook distinguishes orange diamond signs from the more common yellow diamond warnings. Black messages on orange warn that construction or maintenance conditions are ahead, so the driver should use extra care and be ready for changed lanes, workers, or unusual traffic control. A railroad crossing uses a circular yellow warning sign with a black cross, and hospital information is blue and white. Speed limits appear on regulatory signs, not this temporary hazard format. The color is the key cue: yellow generally warns of road conditions, while orange points specifically to work activity or maintenance.