| Across |
| 1. | What is the minimum height of a socket outlet in a domestic dwelling |
| 6. | What is the test voltage for insulation resistance on a domestic power circuit |
| 7. | What is the maximum height of a light switch in a domestic dwelling |
| 8. | What is the nominal voltage for domestic circuits |
| 9. | What is the British standard for a typical circuit breaker in a domestic dwelling |
| 11. | On what page in the OSG is there a diagram showing the operation of an RCD |
| 14. | What page shows a label stating - Warning PV supply system |
| 15. | State the clip spacing for a generally installed horizontal cable with PVC insulation and an overall diameter of 20mm |
| 16. | What is the conduit factor for a conduit of 63mm diameter (short straight run) |
| 17. | On what page are bathroom zones depicted |
| 19. | What is the maximum floor area that can be served by an A1 ring final circuit |
| 20. | HRC fuses should comply with which British Standard |
| 22. | What is the UK mains supply frequency |
| 23. | What section in the OSG deals with testing circuits |
| 25. | How many appendices are there in the OSG |
| 26. | State the minimum number of twin socket outlets that should be installed in a small living room |
| 27. | Which table in the OSG gives the resistance of copper cables |
| 28. | Which HSE guidance note should an approved voltage indicators comply with |
| 29. | Semi enclosed fused should comply to which British Standard |
| 30. | On what page is there a picture of a diagram showing to reduce the interference of an induction loop |