What can seriously affect your ability to concentrate?

C: Tinted windows

D: Contact lenses

Both recreational drugs and prescribed medicine can affect your concentration. It’s also now an offence to drive with certain drugs in your body and a positive test could lead to a conviction.

You may also be interested in these theory test questions

What should the driver of the grey car (arrowed) be especially aware of?

You’re driving towards this left-hand bend. What dangers should you be aware of?

You’re waiting to emerge at a junction. Your view is restricted by parked vehicles. What can help you to see traffic on the road you’re joining?

During periods of illness, your ability to drive may be impaired. What must you do?

What should the driver of the red car (arrowed) do?

What type of vehicle could you expect to meet in the middle of the road?