Fog and smoke: reduced visibility warnings and lamp use

Fog, smoke, and heavy spray shorten how far you can see. Warning signs tell you to expect poor visibility; your speed and following distance must match what you can actually see.

Pair Traffic Signs (reduced visibility warnings) with Road Rules / vehicle lighting chapters. See also night driving and headlights on this site.

Sample questions (exam-style wording)

The correct choice is highlighted in each list and repeated under Correct answer. Sample wording is illustrative—not copied from the encrypted exam bank.

Next steps

Review Questions · Exam Readiness