North Dakota Class D Knowledge Practice Test
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Passing target: 80% (24/30)
On a two-lane highway, you come up behind a vehicle that shows an orange triangle with a red reflective border on its back. What does this emblem tell you?
Blue car A follows a green tractor on a two-lane road. An orange triangle with a red border is fixed to the tractor’s rear; an enlarged view shows the same emblem beside the road.
Correct answer: The vehicle is built to travel at 25 mph or less, so you will close in on it fast.
Why
The slow-moving vehicle emblem is an orange triangle with a red reflective border. It is used on farm equipment and road machinery built for 25 mph or less, and on equipment towed at that speed; some of these vehicles use a flashing amber light instead. At highway speed you close on such a vehicle very fast, so slow down as soon as you see the emblem and pass only where it is safe and legal.
Verified against 2025-2027 Class D Noncommercial Driver License Manual · Warning signs (slow-moving vehicle sign) · p. 16
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