Free mock exam
C&G 2391-51 Mock Exam — Periodic Inspection & Testing
Free City & Guilds 2391-51 Periodic Inspection & Testing mock exam. 30 questions drawn from a 322-question bank covering periodic inspection and condition reporting to BS 7671: EICR observations and classification codes (C1/C2/C3/FI), extent and limitations, sampling, the GN3 test sequence, continuity, insulation resistance, polarity, earth fault loop impedance and RCD testing. Sitting the combined 2391-52 instead? Use our 2391 Inspection & Testing mock exam, which also covers initial verification.
- Questions
- 30
- Time limit
- 90 min
- Pass mark
- 70% · 21/30
- Question bank
- 322
Free, no sign-up. Retake as many times as you like — different questions each time.
Sample questions
01What is the primary purpose of periodic inspection and testing?
- ATo extend the manufacturer warranty on the consumer unit
- BTo verify the installation remains safe for continued use
- CTo prove the installation complies with the latest edition of BS 7671
- DTo increase the value of the property before sale
Why: Periodic inspection and testing verifies that an electrical installation remains safe for continued use and identifies any deterioration or defects.
02Which British Standard covers requirements for initial verification and periodic inspection?
- ABS 5839
- BBS 6004
- CBS 7430
- DBS 7671
Why: BS 7671 (IET Wiring Regulations) covers requirements for initial verification and periodic inspection and testing of electrical installations.
03What does EICR stand for?
- AElectrical Inspection Certificate Report
- BElectrical Installation Condition Report
- CElectrical Industry Certification Requirements
- DEnergy Installation Compliance Report
Why: EICR stands for Electrical Installation Condition Report, which documents the condition of an existing electrical installation.
Common questions
Is the C&G 2391-51 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.
