Home › CDL Practice Tests › General Knowledge Questions › Question 32
In heavy fog, what is the best course of action when visibility keeps getting worse?
- A.Follow the taillights of the vehicle ahead closely
- B.Use high beams so you can see farther
- C.Keep driving at the speed limit so traffic flows
- D.Slow down, use low beams, and if you cannot see well enough, pull completely off the road and stop
Correct answer
D. Slow down, use low beams, and if you cannot see well enough, pull completely off the road and stop
Why
High beams reflect back in fog and following taillights closely invites a chain-reaction crash. When you cannot see far enough ahead to stop, the only safe choice is to get fully off the roadway and wait.
Manual topic: Safe Driving - Speed Management · From the General Knowledge practice bank (GK-032).