Study for the TX DMV Written Driving Test.. Study with flashcards and multiple-choice questions. With over 500 questions. Practice the signs and driving rules. Updated for 2024. Get ready for your driving test!

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If you are driving in fog what should you do?

  1. Use your parking lights

  2. Increase your speed

  3. Reduce your speed

  4. Turn off your lights

The correct answer is: Reduce your speed

When driving in fog, it is important to reduce your speed as visibility is diminished. Using your parking lights (option A) will not provide enough illumination and may confuse other drivers. Increasing your speed (option B) is dangerous as you may not be able to avoid obstacles or other vehicles in the limited visibility. Turning off your lights (option D) is also dangerous as other drivers may not see you and you may not be able to see their headlights in order to stay in your lane. Reducing your speed is the safest option as it gives you more time to react to any potential hazards.