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

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

What should you do when there’s been a heavy fall of snow?

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

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?

Why is it bad technique to coast when driving downhill?

What do traffic-calming measures do?

You’re on a motorway in fog. The left-hand edge of the motorway can be identified by reflective studs. What colour are they?