Theory driving test is made up of two parts, multiple choice questions and the hazard perception test.
Multiple choice for cars you will be given 50 questions in 57 minutes with the pass mark being 43 out of 50.
Hazard perception for cars - you will be presented with 14 video clips. You’ll need to respond to the developing hazard during the early part of its development. The pass mark is 44 out of a possible 75.
To help you prepare for this test the Driving Standards Agency have developed a multi-media training resource called The Official Guide to Hazard Perception, various other companies have produced books and software to help you with this test.