Oregon Class C Passenger Permit Practice Test
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Passing target: 80% (28/35)
You drive into thick fog on a highway at night. You can see only a short distance ahead. How should you set your headlights and your speed?
A travels on a two-lane highway at night as thick gray fog hides the road ahead. Nearby lane markings remain visible, but the view fades quickly; the question shows no headlight instruction or highlighted beam.
Correct answer: Use low beams, slow down, and be ready to stop for slow or stopped vehicles ahead.
Why
Fog, dust and smoke hide hazards and make distances hard to judge. Use low beams, reduce your speed, and watch for slow or stopped vehicles and other obstacles. If the fog is too thick to drive safely, leave the road completely, pull as far to the right as you can, and turn on your hazard lights so that other drivers can see where you are.
Verified against Oregon Driver Manual · Fog, dust and smoke · p. 85
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