You have to make a journey in fog. What should you do before you set out?

A: Top up the radiator with anti-freeze

B: Make sure that you have a warning triangle in the vehicle

C: Make sure that the windows are clean

D: Check the battery

If you have to drive in fog, switch your dipped-beam headlights on and keep your windscreen clear. You should always be able to pull up within the distance you can see ahead.

You may also be interested in these theory test questions

Why should you switch off your rear fog lights when the fog has cleared?

You’re on a motorway at night, with other vehicles just ahead of you. Which lights should you have on?

Why is travelling in neutral for long distances (known as coasting) wrong?

You’re driving down a long, steep hill. You suddenly notice that your brakes aren’t working as well as normal. What’s the usual cause of this?

What should you do when you meet an oncoming vehicle on a single-track road?

Why should you always reduce your speed when travelling in fog?