Free mock exam
Special Locations — 18th Edition (BS 7671) Practice
Free topic-focused mock exam: all 18 questions on Special Locations, drawn from the wider 18th Edition (BS 7671) bank. 60-minute timer, 70% to pass, worked explanation on every question. Use this when you've taken the full mock once and want to drill the topics you got wrong.
- Questions
- 18
- Time limit
- 60 min
- Pass mark
- 70% · 13/18
- Question bank
- 18
Free, no sign-up. Retake as many times as you like — the questions are reshuffled, with the answer order changed.
Sample questions
01What is the required IP rating for equipment in bathroom Zone 1?
- AIPX6
- BIPX5
- CIPX4
- DIPX7
Why: Equipment in bathroom Zone 1 requires a minimum IP rating of IPX4.
02In zone 0 of a swimming pool, which protective measure is permitted?
- ASELV at not more than 25 V AC RMS or 60 V ripple-free DC, the source being outside zones 0 and 1
- BElectrical separation supplied by an isolating transformer mounted within zone 2 of the pool
- CAutomatic disconnection of supply with a 30 mA RCD and supplementary bonding throughout
- DSELV at not more than 12 V AC RMS or 30 V ripple-free DC, the source being outside zones 0, 1 and 2
Why: Regulation 702.410.3.4.1 states that, except for fountains, in zone 0 only protection by SELV at a nominal voltage not exceeding 12 V AC RMS or 30 V ripple-free DC is permitted, with the SELV source installed outside zones 0, 1 and 2.
03In zone 1 of a swimming pool, what is the maximum SELV voltage permitted?
- A25 V AC RMS or 60 V ripple-free DC, with the source installed outside zones 0, 1 and 2
- B50 V AC RMS or 120 V ripple-free DC, the general SELV limit for dry locations
- C12 V AC RMS or 30 V ripple-free DC, matching the limit that applies in zone 0
- D230 V, provided the circuit is protected by a 30 mA residual current device
Why: Regulation 702.410.3.4.1 states that, except for fountains, in zone 1 only protection by SELV at a nominal voltage not exceeding 25 V AC RMS or 60 V ripple-free DC is permitted, with the source installed outside zones 0, 1 and 2.
Common questions
Is the Special Locations mock exam free?
Yes — 100% free, no sign-up needed. Questions are pulled at random from a substantial bank, with a worked explanation on every question after you submit.
Can I retake the mock exam?
Yes. Every attempt picks a different random selection and reshuffles the options, so each retake gives you genuinely new questions. No limit on retakes.
Does this count towards the real qualification?
No — this is independent practice material. To gain the actual qualification you need to sit the official assessment through an approved provider.
