UK Driving Theory Practice Exam 2026 – Your All-In-One Guide to Passing on the First Try!

When parked in foggy conditions, using sidelights is the appropriate choice because they help make your vehicle visible to others without causing glare. Sidelights are designed to indicate the presence of your vehicle to other drivers, which is particularly important in low visibility conditions like fog. They provide a subtle illumination that can be helpful without overwhelming other road users' vision.

While dipped headlights can also increase visibility, they are generally more suitable for when you are actively driving rather than parked. Full beam lights are discouraged in fog as they can reflect off the fog and reduce your ability to see, as well as impair visibility for other drivers. Hazard lights are intended for indicating a breakdown or a situation requiring caution; they’re not the best choice for making your parked vehicle visible in fog. Thus, sidelights serve the purpose effectively, ensuring safety while you're parked in foggy conditions.