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Minnesota Class D Knowledge Practice Test
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Passing target: 80% (24/30)
Observation, Speed & SpaceStandalone practice
The posted speed limit is 55 mph. Blowing snow now hides the lane lines and cuts how far you can see. What speed does Minnesota law require?
Correct answer: A lower speed that is reasonable for the snow and for how far you can see
Why
A higher speed gives you less time to see a hazard and react. In snow, your tires also have less grip, so you need more distance to stop. Slow down so that you can stop within the distance that you can see clearly.
Verified against Minnesota Driver's Manual · Speed limits: basic speed law; Reduced speed · p. 29, 30
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