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Idaho Class D Knowledge Practice Test
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Passing target: 85% (34/40)
Warning, Construction & Information SignsStandalone practice
A yellow warning sign shows a car with curving skid marks. What should you expect?
Correct answer: A road that may be slippery when wet
Why
The slippery-when-wet sign warns that traction can be reduced. Slow before the affected area, leave more following space and use smooth steering, braking and acceleration. Do not make an abrupt movement just because the sign appears.
Verified against Idaho Driver’s Handbook, July 2026 · Slippery when wet warning · p. 52
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