It is a Level 3 test that features electrical design-based questions and science and principles, it covers 15 areas of knowledge and understanding. It is an on-screen test with multiple-choice and scenario-based questions. It comprises of 50 questions over the course of 100 minutes.
As it is an open-book exam, you will need to reference the current versions of the IET On-Site Guide and BS 7671.
See the EWA Entry Test page and Test Coverage information for more information, and the EAL website.