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Massachusetts Class D Learner's Permit Exam
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Weather, Visibility & EmergenciesStandalone practice
Rain has just started after dry weather. Why should you reduce speed early?
Correct answer: Water can mix with accumulated dirt and oil to form a slippery film.
Why
Slow down as rain begins. Water mixing with road dirt and oil can form a slippery film, making early rain especially hazardous. Leave more room and use smooth controls; do not wait for deep water or an actual skid before responding.
Verified against Massachusetts Driver’s Manual · Rain after a dry spell · p. 55
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