Electrical Earthing Systems Quiz

Which earthing system has a metallic return path and a combined neutral and protective conductor throughout the system?

• TN-C-S

• TN-S

• TT

• TN-C

In which earthing system are all exposed-conductive-parts earthed in groups or individually?

• TN-S

• IT

• TN-C-S

• TT

According to Regulation 8(4) of the Electricity Safety, Quality and Continuity Regulations 2002, which system should not combine the neutral and protective functions in a single conductor?

• TN-C-S

• TN-C

• TN-S

• TT

In which earthing system are the neutral and protective functions combined in a single conductor throughout the system?

• IT

• TT

• TN-S

• TN-C-S

Which earthing system has no direct connection between live parts and Earth?

• TN-C-S

• TN-S

• TN-C

• TT

In which earthing system are the exposed-conductive-parts earthed in groups or individually?

• TN-C-S

• TN-S

• IT

• TT

Which earthing system has a PEN conductor and a metallic return path?

• TN-C

• TT

• TN-S

• TN-C-S

In which earthing system are the neural and protective functions combined in a single conductor throughout the system?

• TN-C-S

• TN-S

• IT

• TT

According to Regulation 8(4) of the Electricity Safety, Quality and Continuity Regulations 2002, which system should not combine the neutral and protective functions in a single conductor?

• TN-C-S

• TN-S

• TT

• TN-C

Which earthing system has a PEN conductor and a metallic return path?

• TN-C-S

• TN-S

• TT

• TN-C