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South Carolina Class D Knowledge Test Practice
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Freeways & High-Speed RoadsStandalone practice
In daylight you keep a 4-second following distance. Tonight you are driving home on a highway that you know well. What is the smallest following distance that you should keep?
Correct answer: 5 seconds, with one extra second for night driving.
Why
At night you can see only as far as your headlights reach, and it is harder to judge distance and speed. The extra time gives you room to react to a dark object or a sudden stop. On an unfamiliar road at night, add at least two seconds, and add more in rain or fog.
Verified against South Carolina Driver's Manual · Night highway driving · p. 99, 127
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