Free mock exam
C&G 2391-52 Mock Exam — Inspection & Testing
Free City & Guilds 2391-52 Inspection & Testing mock exam. 30 questions from a 300-question bank covering the BS 7671 testing sequence, initial verification, periodic inspection, EICR coding (C1/C2/C3/FI), continuity testing, insulation resistance, polarity, earth fault loop impedance, RCD testing and the GN3 procedures. Ideal practice whether you're sitting the combined 2391-52 or the standalone 2391-50 (initial verification) and 2391-51 (periodic inspection) units.
- Questions
- 30
- Time limit
- 90 min
- Pass mark
- 70% · 21/30
- Question bank
- 346
Free, no sign-up. Retake as many times as you like — different questions each time.
Sample questions
01Which 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.
02What is the purpose of periodic testing compared to initial verification?
- ATo record minor additions to an existing circuit
- BTo confirm the design current of each new circuit
- CTo assess deterioration and continued safety of an existing installation
- DTo certify a brand new installation before energising
Why: Periodic inspection assesses deterioration and verifies continued safe operation of an existing installation.
03What is the purpose of an Electrical Installation Certificate (EIC)?
- ATo assess the condition of an existing installation
- BTo certify that a new installation complies with BS 7671
- CTo record minor additions to an existing circuit
- DTo confirm the supply characteristics provided by the DNO
Why: An EIC certifies that a new installation or addition has been designed, constructed, inspected, and tested in accordance with BS 7671.
Common questions
Is the C&G 2391-52 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.
