Updated to Amendment 4
Practise against BS 7671:2018+A4:2026, the current big orange book used for Wiring Regulations exams.
BS 7671 Amendment 4
Free BS 7671 Amendment 4 mock exams
The 2026 big orange book
Get exam-ready for the 18th Edition Wiring Regulations with free BS 7671 practice questions updated to Amendment 4. Every answer is explained with references and page numbers, so you can find it in the big orange book.
Wiring Regulations practice
Mock exams, topic revision and answers
Suitable for learners preparing for City & Guilds 2382-26 and EAL 610/7005/1, unit 18ED3-04, Wiring Regulations assessments.
Practise with short quizzes, part-by-part topic tests, or a full mock exam using the published 60-question learning outcome split.
Questions are based on BS 7671 as updated to Amendment 4, with every answer explained and referenced by page number.
Short quiz or full exam
Practise as much as you like, from quick 5-question drills to a full 60-question mock exam.
Explained with references
Every answer includes an explanation, reference and page number so you can find it in the book.
Practise by topic
Choose a topic
Use the cards to jump straight into a focused BS 7671 practice area, or choose the whole-book mock exam below. All topics are updated to Amendment 4 2026.
Quiz setup
Build your BS 7671 practice test
Select the full mock exam or focus on one specific part of the Wiring Regulations. Every attempt gives you a fresh practice set.