Closed Book
Fault Coding
This pool’s 44 questions are part of the full bank in the app. The study guide for this topic is free to read on the site.
These questions are in the app
The free sample on this site mirrors the app’s free tier exactly, and this pool is one the app keeps for the full version. All 44 fault coding questions in closed book are there, each with a worked explanation.
The Fault Coding study guide covers this topic in full, free.
Want the rest of the bank?
The app holds all 556 questions written against BS 7671:2018+A4:2026, plus the weighted mock exam, flash cards, per-topic scoring and the on-site tools.