The first half-hour of rain
A free practice question for the Virginia permit test, with the answer explained.
Independent practice site. We're not the DMV and aren't connected to any government agency.
When is a road more likely to be slippery?
The rule
During the first half-hour after rain begins, roads are more likely to be slippery, because oil on the road mixes with the water.
In the first half-hour after rain begins, oil on the road surface mixes with water and makes the road slippery. Slow down as soon as it starts.
From the Virginia Driver's Manual, section 3, page 23. This question is our own wording of that rule. The handbook and the DMV have the final word.
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