Free practice
2391-52 practice questions
54 free questions with the same worked explanations as the app, drawn from the full 556-question bank. Nothing is recorded and there is no sign-up.
Open Book
Questions you answer with BS 7671 in front of you — the ones that test whether you can find and apply a regulation, table or appendix quickly.
Initial Verification
6 free questions · 56 in the app
StartPeriodic Inspection
8 free questions · 102 in the app
StartTest Procedures
10 free questions · 78 in the app
StartCertification and Reporting
10 free questions · 63 in the app
StartFault Coding
23 questions, in the app
View topicSafe Isolation and GS38
22 questions, in the app
View topicStatutory Requirements
36 questions, in the app
View topicClosed Book
Questions you answer from knowledge alone — classification codes, test sequences, safe isolation and the values you are expected to carry in your head.
How the practice questions work
Shuffled every time
Questions and answer options are reordered on each attempt, so you cannot learn the position of the right answer.
Explained, not just marked
Every question carries a worked explanation citing the regulation or guidance it comes from.
Scored against 75%
Your result is compared with the 75% pass mark the real 2391-52 paper uses.
