Alberta Written Drivers Learners Test Practice

What should you do if you're driving in fog?

1. Use high beam headlights and increase speed

2. Use low beam headlights and reduce your speed

3. Turn your headlights off to reduce glare

4. Use hazard lights and drive at a normal speed

The correct answer is: Use low beam headlights and reduce your speed

In foggy conditions, visibility is significantly reduced, making it more challenging to see other vehicles, road signs, and obstacles. The appropriate action is to use low beam headlights and reduce your speed. Low beam headlights are designed to illuminate the road immediately in front of your vehicle without causing excessive glare that can reflect off the fog, rain, or snow, impairing visibility further. High beam headlights, on the other hand, can create a blinding effect due to the light reflecting off the water droplets in the fog, which can actually reduce your ability to see well, rather than improve it. Reducing speed is equally important, as it allows more time to react to any potential hazards that may suddenly appear in your path. Fog can obscure hurdles, road curves, and other vehicles, necessitating careful maneuvering and extended reaction time. Therefore, using low beam headlights enhances visibility without the negative effects of glare, and driving at a reduced speed helps ensure safety in the hazardous driving conditions created by fog.