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Idaho Class D Knowledge Practice Test
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Observation, Speed & SpaceStandalone practice
Heavy rain reduces visibility and traction. What should happen to your following distance?
Blue car A follows silver car B to the right on a wet two-way road. Rain streaks are visible. No following time or distance is marked.
Correct answer: Increase it well beyond the normal three-second minimum
Why
Poor visibility and reduced traction lengthen the time and distance needed to respond, so the following gap must grow substantially.
Verified against Idaho Driver’s Handbook, July 2026 · Wet-road following gap · p. 80
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