CDL · Night and weather
When is the road surface usually at its most slippery?
Correct answer: When rain first falls after a dry period.
Answer options
- AWhen rain first falls after a dry period Correct
- BAfter rain has been falling for some time
- CIn the middle of a heavy downpour
Why
During dry weather, oil, rubber and grime build up on the pavement, and the first rain turns them into a slick film. As the rain continues it washes much of that residue away, so the road tends to be at its worst right when the rain begins.
About this question
Topic: Night and weather License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Slippery Roads and Hydroplaning (20 questions). Take the full set and check your score.
Practice Slippery Roads and HydroplaningMore questions from Slippery Roads and Hydroplaning
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