Idaho DMV Permit Test Practice Questions - Idaho Driver License Written Knowledge Test Exam

When driving in heavy rain at the start of a rainstorm, the road is often most slippery because:

The rain washes the road completely clean Water mixes with oil and dirt on the road surface before it is washed away Rain has no effect on traction The road becomes warmer

Correct Answer:

Water mixes with oil and dirt on the road surface before it is washed away

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