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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
Weather, Visibility & EmergenciesStandalone practice
Dense fog is reducing visibility. Which lighting choice normally helps you see and be seen without increasing reflected glare?
Blue car is centered in its eastbound lane on a two-way road in fog. The car and road edges remain readable.
Correct answer: Low beams, plus fog lights if the car has them.
Why
Use low beams in fog; suitable fog lights may help. Reduce speed to match the distance you can see. If visibility is too poor for safe driving, leave the roadway for a safe parking place rather than stop in a travel lane.
Verified against Iowa Driver's License Manual and current primary rules · Headlights in fog · p. 60
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