California Driver License (DMV) Written Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 570

When driving in fog, what should you do?

Use your high beams.

Increase your speed.

Drive in the right lane.

Use your low beams and reduce your speed.

Driving in fog reduces visibility, which can cause accidents. Using high beams can create glare and reduce your visibility even further. Increasing your speed can also lead to accidents as you may not be able to see obstacles or other vehicles in time to react. Driving in the right lane is not a universal solution as it may be safer to drive in the left lane if the fog is heavier on the right side. Using low beams and reducing your speed allows you to maintain your visibility and have more time to react to any hazards on the road. It also helps prevent glare and reduce the risk of collisions. Therefore, the best option when driving in fog is to use your low beams and reduce your speed.

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