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Tennessee Class D Knowledge Test Practice
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Passing target: 80% (32/40)
Weather, Visibility & EmergenciesStandalone practice
At 10 a.m., you drive into thick fog on a highway. Your car has daytime running lights, parking lights, fog lights and headlights. Which lights should you use?
A enters thick fog at 10 a.m. on a two-lane highway. The road and markings fade ahead, and no light setting is selected.
Correct answer: Your low-beam headlights, even though it is still daylight
Why
Fog and smoke can cut your view to a few feet at any time of year in Tennessee. The best choice is not to drive, but if you must, use low beams, slow down, stay to the right and avoid passing. Do not use high beams, because the fog reflects their light back into your eyes.
Verified against Tennessee Comprehensive Driver License Manual · Driving in Inclement Weather Conditions — Fog and smoke · p. 89
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