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Maine Class C Permit Practice Test
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Passing target: 80% (24/30)
Weather, Visibility & EmergenciesStandalone practice
Why can the road be especially slippery just after a light rain begins?
Correct answer: Water mixes with road oil to form a greasy surface film
Why
At the start of light rain, road oil and water can form a greasy film. Reduce speed, allow more stopping distance and avoid abrupt steering or braking. This mechanism differs from hydroplaning, where tires ride on a layer of water.
Verified against Maine Driver License Manual and Motorist Handbook, Rev. 4/24 · Slippery roads after light rain · p. 117
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