Speed Limits

What speed should you drive in fog?

Quick Answer

In fog, slow down significantly below the posted speed limit. Use low-beam headlights — high beams reflect off fog and reduce visibility. Increase following distance. If visibility drops to near zero, pull completely off the road and wait for conditions to improve.

Explanation

In fog, slow down significantly below the posted speed limit. Use low-beam headlights — high beams reflect off fog and reduce visibility. Increase following distance. If visibility drops to near zero, pull completely off the road and wait for conditions to improve. Understanding this concept is essential for safe driving and will help you answer similar questions on the DMV written test.

Why This Matters on the DMV Test

Questions about Speed Limits are among the most common on the permit test. Knowing the correct answer helps you pass your exam and stay safe on the road. Most states require a score of 70–83% to pass.

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