Oklahoma Class D Knowledge Test Practice
Full test preview Question 1 of 20
0 answered 20 remaining
Passing target: 80% (16/20)
At noon, thick fog lets you see only about 300 feet ahead on a rural highway. Which lights should you use?
At midday, A approaches thick fog on a rural two-lane highway. The center and edge lines fade into the fog; the card states visibility of about 300 feet, without selecting a headlight setting.
Correct answer: Headlights on low beam, so that others see you and the fog reflects less glare.
Why
Oklahoma law requires lights from a half hour after sunset to a half hour before sunrise, and at any other time when weather keeps you from seeing people and vehicles clearly at 1,000 feet. In fog, rain or snow, low beams light the road near you without much glare, and they make your car easier for others to see. Slow down so that you can stop within the distance that you can see.
Verified against Oklahoma Driver Manual · Using High and Low Headlight Beams Properly: fog · p. 59
Report a question issueContinue learning
