C&G 2382 (BS7671 18th Edition) Part 5 Practice Questions – Set 1

Results

Congratulations – You Passed! 🎉

You’ve got a good understanding of the City & Guilds 2382 Level 3 Award in the Requirements for Electrical Installations and the Wiring Regulations.

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Not Quite This Time

Not quite a passing score this time, but don’t let that put you off.

The Wiring Regulations can be challenging, and this quiz is designed to test your understanding across a range of topics. Every attempt helps you identify areas where you can improve.

Why not review the topics you struggled with and give the quiz another go?

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#1. Where the main earth terminal is separate from main switchgear, a warning label should be fixed in a visible position at or near with the wording

Danger Earth Connection - Do Not Remove

Danger Electrical Connection - Do Not Remove

Safety Earth Connection - Do Not Remove

Safety Electrical Connection - Do Not Remove

#2. Where an RCD is present within an installation, a notice shall be fixed in a prominent position at or near the device, advising the user to perform a functional test of the functionality at least once every

3 months

6 months

year

5 years

#3. A non-flame propagating wiring system having a maximum internal cross-sectional area of 710 mm2

must be internally sealed

must be internally sealed if passing through a brick wall

need not be internally sealed, if specified conditions are met

need only be sealed if passing through an insulating partition

#4. To which depth should cables that are placed directly in the ground be buried at?

They should be buried not less than 0.75 m

They should be buried sufficiently to allow easy access for regular maintenance

They should be buried not less than 1.50 m

They should be buried sufficiently to avoid damage

#5. Which of the following types of SPD is the most appropriate for installation at the origin of an electrical installation to provide protection against direct lightning strikes?

Type 0

Type 1

Type 3

Type 4

#6. Which one of the following can be used as a device for emergency switching off?

A plug and socket-outlet

Switched fused connection unit

A semi-conductor device

Unswitched fused connection unit

#7. Where practical, the connection of the main protective equipotential bonding to the gas services in a building should be made within

3 m of the meter on the consumer’s side

3 m of the meter on the supply side

600 mm of the meter on the consumer’s side

600 mm of the meter on the supply side

#8. The minimum cross-sectional area of a supplementary bonding conductor connecting two extraneous-conductive-parts, with mechanical protection, should be

1.5 mm2

2.5 mm2

4.0 mm2

6.0 mm2

#9. A firefighter’s switch should comply with which one of the following requirements?

Not installed more than 3.00 m from the ground surface level

It must be electrically linked

It must be in a locked location to prevent nuisance or unwanted operation

It should be at or near the main entrance to the building in a conspicuous position

#10. Where an RCD is installed upstream of an RCM, it recommended that the RCM be set to a residual actuating current no higher than

10 % of the rated residual operating current of the RCD

25 % of the rated residual operating current of the RCD

50 % of the rated residual operating current of the RCD

100 % of the rated residual operating current of the RCD

#11. Which document must be issued, following a periodic inspection and testing of an electrical installation, to the person ordering the inspection and testing?

Minor Electrical Installation Works Certificate

Electrical Installation Certificate

Electrical Installation Condition Report

Periodic Inspection Report

#12. The test voltage to be used for an insulation resistance test between the live and protective conductors of a 400 V circuit is

250 V DC

500 V AC

500 V DC

1000 V DC

#13. Upon completion of initial verification, an Electrical Installation Certificate must be completed by

an electrician

one or more skilled persons

the designer of the installation only

the person ordering the work

#14. A check of phase sequence shall be verified on

three-phase circuits

polyphase circuits

single-phase circuits

periodic inspection and testing only

#15. Electrical equipment installed in Zones 1 and 2 of a bathroom, where water jets are not utilised for cleaning purposes, must have a minimum degree of protection of

IP4X

IP2X

IPX4

IPX2

#16. Within Zones 0 and 1 of a swimming pool, a protective provision against electric shock should be by means of

SELV

a non-conducting location

obstacles

placing out of reach

#17. Which one of the following is not classified as an outdoor lighting installation?

A luminaire fixed to the outside of a building and fed from the internal wiring of that building

Illumination of road signage

Illumination of monuments

Lighting arrangements for advertising panels

#18. Which one of the following protective measures shall be used for switches, not incorporated in equipment, in Zone 1 of a bathroom?

Non-conducting location

PELV

Placing out of reach

SELV

#19. To provide protection against external influences, outdoor lighting installations must be provided with a minimum degree of protection of

IP22

IP33

IP44

IP55

#20. In a location containing a bath or shower, the protective measure of earth-free local equipotential bonding is

not permitted

permitted in all zones

permitted in zone 2 only

permitted in zones 1 and 2

#21. Which mechanical protection code should equipment on a pontoon in a marina, that is subject to impact to level AG2, have?

IK05

IK06

IK07

IK08

#22. To acknowledge the risk of medium severity of mechanical protection, equipment within zones 0 and 1 of a fountain should be classified as

AG0

AG1

AG2

AG3

#23. What is the minimum height of overhead conductors on caravan sites, when installed in areas subject to vehicle movement?

3.0 m

3.5 m

5.8 m

6.0 m

#24. Which one of the following is not a type of PEI?

individual

collective

shared

collaborative

#25. Which one of the following is the correct grouping rating factor for six circuits bunched on a surface?

0.45

0.55

0.57

0.69

#26. If an external influence has a general category code of B, which of the following does this code indicate?

Environment

Barriers

Utilisation

Construction of buildings

#27. In which appendix of BS 7671 can details on ring and radial final circuit arrangements be located?

Appendix 11

Appendix 13

Appendix 15

Appendix 17

#28. The derating factor to be applied for a cable surrounded by thermal insulation for a length in excess of 500 mm is

0.78

0.63

0.51

0.50

#29. Installed electrical equipment is being installed that must be capable of being immersed in water and be able to withstand a temperature range of -5 °C to +40°C Which are the most appropriate external influence codes for this item of equipment?

AA4 and AF3

AA6 and AD5

AD7 and AA4

AK2 and AD7

#30. In which appendix of BS 7671 can details on escape routes and fire protection be located?