how to pass theory test first time

You’ll get a letter at the test centre. It’ll tell you which parts you did not score enough points on so you know what to practise.
You must book and take the full test again, even if you passed one part this time.

The actual theory test is done by clicking your way through a number of questions. These are typically related to traffic from the driver’s seat perspective.
You must only make a decision on what you can see in the picture, unless a question is asked directly about something else. You will be told how fast you are driving or where you must go. A question will then be asked about how you will continue, what will you do, or what you should be especially aware of. Other types of questions may also be asked.

You can get started completely free. No credit card required.
We’ve got the Hazard Perception test too. You’ll get access to the complete Hazard Perception test so you can practice and see exactly what it is you need to do to pass first time.

References:

http://www.teoriklar.eu/doc/menu/6/gode-raad-foer-teoriproeven
http://www.theorytestpro.co.uk/student/
http://www.gov.uk/theory-test/pass-mark-and-result