Ten multiple-choice questions on BS 7671:2018+A4:2026 (the IET Wiring Regulations with Amendment 4), for practice before an open-book test such as the 2382-26 assessment. Have your copy open and find each answer in the book, not from memory: that is the skill being tested. Answers, explanations and where to look follow the questions.
The questions
1. BS 7671:2018+A2:2022+A3:2024 (the version before Amendment 4) was withdrawn on:
- A. 15 April 2026
- B. 15 October 2026
- C. 1 January 2019
- D. 28 March 2022
2. On the IET's A4 model forms (EIC, EICR and Minor Works), the TN-C-S earthing arrangement is recorded as:
- A. a single TN-C-S box, as on the A2 forms
- B. TN-C-S (PME) or TN-C-S (PNB), as separate options
- C. TN-C only
- D. TT with a note that the supply is PME
3. Protection against voltage disturbances and electromagnetic disturbances is found in:
- A. Chapter 52
- B. Chapter 46
- C. Chapter 43
- D. Chapter 44
4. On the A4 model EICR, confirmation that AFDDs are operational (a new item on the A4 form) cites:
- A. 411.3.3 and 415.1
- B. 643.3.2 and Table 64
- C. 421.1.7, 532.6 and 651.2(e)
- D. 514.12.2
5. On the A4 EICR schedule of inspection, the outcome code 'LIM' means:
- A. low insulation measured
- B. limitation
- C. limited danger
- D. line impedance measured
6. On the A4 model EICR, code C2 means:
- A. further investigation is advised
- B. danger present, immediate remedial action is necessary
- C. potentially dangerous, urgent remedial action is necessary
- D. improvement recommended
7. You are adding a circuit in a room containing a shower. Which Section of Part 7 applies?
- A. Section 709
- B. Section 701
- C. Section 702
- D. Section 703
8. Electric vehicle charging installations are covered by Section:
- A. 722
- B. 712
- C. 716
- D. 730
9. Outdoor lighting installations are covered by Section:
- A. 712
- B. 715
- C. 753
- D. 714
10. What happened to Appendix 17 (energy efficiency) in Amendment 4?
- A. It was renumbered Appendix 18
- B. It moved into Part 7 as Section 717
- C. It became normative
- D. It was deleted, and energy efficiency moved to new Chapter 81
Answers and explanations
1. Answer B: 15 October 2026 (Paper 2, Q1)
The A2+A3 version was withdrawn on 15 October 2026, six months after A4 was published. 28 March 2022 is when A2 was published and 1 January 2019 is when the 2018 edition came into effect.
Where to look: ESF BPG 4 issue 7.4, note on versions; BS 7671 front matter
2. Answer B: TN-C-S (PME) or TN-C-S (PNB), as separate options (Paper 2, Q12)
The A4 forms split the TN-C-S tick-box into PME and PNB, so the inspector must identify which type of TN-C-S supply is present.
Where to look: BS 7671 Part 3 and Appendix 6; IET A4 model EICR (15 April 2026), Section I
3. Answer D: Chapter 44 (Paper 1, Q15)
Chapter 44 covers voltage and electromagnetic disturbances. Chapter 43 is overcurrent, Chapter 46 isolation and switching and Chapter 52 wiring systems.
Where to look: BS 7671 Part 4, Chapter 44; A4 table of contents
4. Answer C: 421.1.7, 532.6 and 651.2(e) (Paper 2, Q29)
Item 4.23 is new on the A4 EICR and cites 421.1.7, 532.6 and 651.2(e).
Where to look: BS 7671 regs 421.1.7 and 532.6; IET A4 model EICR (15 April 2026), item 4.23
5. Answer B: limitation (Paper 2, Q43)
The schedule outcome codes include C1, C2, C3, FI, N/V (not verified), LIM (limitation) and N/A (not applicable).
Where to look: BS 7671 Appendix 6; IET A4 model EICR (15 April 2026), schedule of inspection
6. Answer C: potentially dangerous, urgent remedial action is necessary (Paper 3, Q42)
C1 is danger present, C2 potentially dangerous, C3 improvement recommended and FI further investigation advised.
Where to look: BS 7671 Appendix 6; IET A4 model EICR (15 April 2026), Section K
7. Answer B: Section 701 (Paper 1, Q45)
Section 701 is bath and shower locations. 702 is swimming pools, 703 sauna heaters and 709 marinas.
Where to look: BS 7671 Section 701; A4 table of contents
8. Answer A: 722 (Paper 1, Q49)
Section 722 covers EV charging installations.
Where to look: BS 7671 Section 722; A4 table of contents
9. Answer D: 714 (Paper 2, Q48)
Section 714 is outdoor lighting installations. Extra-low voltage lighting is Section 715.
Where to look: BS 7671 Section 714; A4 table of contents
10. Answer D: It was deleted, and energy efficiency moved to new Chapter 81 (Paper 1, Q55)
A4 deleted Appendix 17 and introduced Chapter 81. Section 717 is mobile or transportable units.
Where to look: BS 7671 Chapter 81; A4 table of contents
Get the full papers
All ten are also in our paid practice papers, word for word. The paper and question number are given with each answer.
BS 7671 A4:2026 Practice Papers (£9.99, PDF): three 60-question papers, 180 original questions covering every Part of BS 7671, with answer sheets, a score record by topic, and an explanation and 'where to look' reference for every answer.
The Electrician Study Bundle (£34.99) adds Inspection and Testing Calculations, Electrical Science Calculations and the 2391-52 Inspection and Testing Practice Papers, so you get all four PDFs together.
Independent publication. Not produced, endorsed or approved by City & Guilds, the IET or BSI. Not a past paper and contains no assessment questions.
Written by a City & Guilds 2391-51 qualified electrician.