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 9
signals-markings
When a ramp meter shows a circular green display, what may a North Carolina driver do?
- Proceed down the ramp and merge onto the freeway
- Stop at the ramp entrance until the display turns red
- Drive onto the freeway without merging
- Back up and use the shoulder
Answer: Proceed down the ramp and merge onto the freeway. A circular green ramp-meter display permits a vehicle facing it to proceed down the entrance ramp and merge onto the freeway. The driver still must make a safe merge and yield as normal conditions require. Green does not remove the need to check the freeway lane. A red display requires a stop, while a dark meter allows movement without stopping under ordinary merge or yield conditions.