2391-51

What would be the correct procedure to confirm that the existing electrical installation in a dwelling is suitable for the additional wiring of an extension?

• a) A visual inspection of the wiring and condition of the accessories.

• b) A full review of the original electrical installation certificate.

• c) Certification of the additional wiring on completion of the extension.

• d) A periodic inspection and test of the existing installation.

What is the purpose of a periodic inspection and test relating to the safety of the building?

• a) There is no risk of electric shock and burns.

• b) There is no risk of fire caused by the electrical installation.

• c) That the electrical installation is not damaged.

• d) That there are no defects or non-compliances present.

What is the minimum level of IP protection for the opening shown as Item A in Figure 1?

• a) IP4X

• b) IPX4

• c) IP2X

• d) IPX2

What is the minimum level of IP protection for the accessible top surface of a consumer unit?

• a) IP4X

• b) IPX4

• c) IP2X

• d) IPX2

Which publication gives detailed information for carrying out testing of electrical installations?

• a) HSE GS 38

• b) IET Guidance Note 3

• c) IET Guidance note 1

• d) HS(G)141

What would be agreed with the client and recorded as a limitation for a periodic inspection and test?

• a) No insulation resistance testing between live conductors to be carried out.

• b) The installation can be isolated and a full range of tests to be carried out.

• c) The finalised report is to be provided to the client electronically.

• d) Only calibrated test instruments are to be used.

Which statutory document includes the requirements for working on live conductors?

• a) The Electricity Safety Quality and Continuity Regulations.

• b) The Construction (Design and Management) Regulations.

• c) The Health and Safety at Work Act.

• d) The Electricity at Work Regulations.

What action should the inspector take, both before and after testing, to confirm isolation of the supply?

• a) Switch the main isolator on and off.

• b) Lock the main switch on the open position.

• c) Confirm the operation of the approved voltage indicator.

• d) Attach a warning label at the isolator stating ‘do not switch on

An inspection is to be carried out at the termination of the circuit conductors inside a terminal box, as shown in Figure 2 Which human sense is best used to confirm the terminals are suitably tightened?

• a) Touch.

• b) Sight.

• c) Smell.

• d) Hearing

An inspection is to be carried out at the termination of the circuit conductors inside a terminal box, as shown in Figure 2.

What is confirmed when inspecting the conductor insulation?

• a) Suitable csa.

• b) Correctly identified.

• c) Terminals are tight.

• d) Contained in the terminals.