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Illinois Class D Written Exam Practice
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Observation, Speed & SpaceStandalone practice
What should happen to following distance when rain, ice, darkness, or poor visibility increases risk?
Blue A follows silver B on a wet two-way road. Rain strokes appear beside the road; no elapsed time or measured following interval is shown.
Correct answer: Increase it beyond the normal three seconds.
Why
Reduced traction or visibility calls for more space than the ordinary favorable-condition baseline.
Verified against Illinois Rules of the Road, July2026 · Following space in poor conditions · p. 86
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