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Idaho Class D Knowledge Practice Test
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Passing target: 85% (34/40)
Warning, Construction & Information SignsStandalone practice
An orange triangle with a red reflective border is mounted on the rear of a farm vehicle. What should you expect?
Correct answer: A slow-moving vehicle; slow down and approach with care
Why
The slow-moving-vehicle emblem warns of a vehicle that may travel much more slowly than ordinary traffic. Close the gap carefully and pass only when legal and safe. Do not infer an absolute 25-mph cap from the emblem: current law allows certain qualifying farm equipment designed for higher safe speeds to travel faster.
Verified against Idaho Driver’s Handbook, July 2026 · Slow-moving equipment emblem · p. 47, 79
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