Initial Verification Principles (Closed Book)
Closed-book memory test on key safety rules, test sequence order, and fundamental inspection principles.
Key Learning & Examination Objectives
- ✓ Sequence of dead and live tests from memory
- ✓ Minimum insulation resistance values (1.0 MΩ for low voltage)
- ✓ Color coding and polarity identification
- ✓ Safety requirements before applying test voltages
Overview of Closed: Initial Verification
The Initial Verification Principles (Closed Book) module evaluates your practical understanding of BS 7671:2018+A4:2026 Part 6 (Inspection and Testing) and IET Guidance Note 3. Candidates preparing for the City & Guilds 2391-52 qualification must demonstrate complete accuracy in both theoretical principles and field test execution.
Important BS 7671 Standard Note
All questions in this module strictly reflect the latest UK wiring regulations BS 7671:2018+A4:2026. Pay special attention to maximum earth fault loop impedance tables, temperature correction factors (0.8 × Zs rule), and RCD trip testing thresholds.
Question Bank Details
Our full mobile app contains 36 practice questions for this topic alone. You can test your knowledge right now using our web quiz player.