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North Dakota Class D Knowledge Practice Test
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Observation, Speed & SpaceStandalone practice
You drive a car at 55 mph on dry, level pavement in good weather. About how much distance does it take to bring the car to a stop?
Correct answer: About 300 feet
Why
Speed, load and the road surface change this number. A higher speed, a heavy load or a trailer, and wet, snowy or icy pavement all make it longer. Because you need so much road to stop, keep at least a three-second gap to the vehicle ahead and look well down the road for hazards.
Verified against 2025-2027 Class D Noncommercial Driver License Manual · Following and stopping distances · p. 25
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