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Washington Personal Driver Knowledge Test
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Passing target: 80% (32/40)
Weather, Visibility & EmergenciesStandalone practice
After a hot, dry week, light rain starts to fall as you drive on a road posted at 45 mph. What should you do?
A travels on a road as light rain begins after a hot, dry week; the 45 mph posted limit is stated.
Correct answer: Slow below 45 mph now, because early rain makes the road very slippery
Why
Washington's basic speed law requires a reduced speed when weather or road conditions create a special hazard. Snow and ice call for a much lower speed and a larger following distance. Bridges, overpasses and shady spots can be icy even when the rest of the road is not.
Verified against Washington Driver Guide · Slippery roads · p. 170, 171
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