GMJ 6189 electrical quiz 1

Which of the following documents covers the installation, testing and maintenance of a commercial electrical system?

• Electricity at Work Regulations

• Electrical Installation Guidelines

• Building Regulations Part L

• HASAW 1974.

Which Building Regulations deals with the conservation of fuel and power?

• Part P

• Part G

• Part L

• Part J.

Name the type of cable that would be used in domestic installations?

• Three core double-insulated flex

• Flat profile thermoplastic

• Individual cables

• Heat-resistant flex.

When wiring a control system for an S plan installation (for example), where should all of the wires be centrally located?

• The wiring centre

• The fused spur

• Individual junction boxes

• Behind the programmer.

When removing components from copper pipework, earth continuity bonds must be used and the CSA of the cables must be sufficient to provide which of the following?

• Rapid melting if a current travels through them

• An equal resistance to the pipework being worked on

• Full reconnection of the live circuit

• The connection of safety lighting.

To reduce the risk of electric shock to the engineer, GS38 recommends the maximum length of exposed metal tips on equipment test probes should be:

• 16mm

• 10mm

• 6mm

• 4mm

When installing and connecting an electric shower, which document should be referred to?

• Building Regulations Part P

• Manufacturer’s instructions

• BS 7671

• Electricity at Work Regulations.

What must be done before any electrical installation work is carried out on an existing dwelling?

• Check the location of water and gas services

• Carry out a risk assessment

• Confirm the name and details of the electricity provider

• Discuss the history of the building with the customer.

What is the minimum distance from the top of a joist to drill a hole for a cable if there is no mechanical protection available to prevent the cable being damaged by a floorboard nail or screw?

• 25mm

• 50mm

• 65mm

• 90mm

A visual inspection of an electrical installation should be carried out in which of the following situations?

• Before the job begins

• During and on completion of the electrical installation

• During a live test of the electrical installation

• After full disconnection.