GMJ 6035 Electrical Mock

Which of the following documents should be referred to for specific wiring details of domestic heating controls?

• Manufactures Instructions

• Building Regulations

• Wiring Regulations

• User Instructions

Which one of the following is the most likely supply voltage type and rating used for central heating circulating pump?

• 220 V a.c.

• 110 V d.c.

• 230 V a.c.

• 230 V d.c.

Which one of the following voltages would be found on a low voltage control heating wiring system?

• 24 V a.c.

• 24 V d.c.

• 12 V d.c.

• 110 V a.c.

Which one of the following earthing arrangements uses and installation earth electrode as part as the fault path?

• TN-C

• TN-C-S

• TT

• TN-S

Which one of the following conductors connects an installations Main Earthing Terminal to the incoming metallic Water Supply Service Pipe?

• Circuit Protective Conductor

• High Integrity Protective Conductor

• Main Protective Bonging Conductor

• Supplementary Bonding Conductor

Which one of the following conductors would normally connect two water pipes together within a bathroom location?

• Circuit Protective Conductor

• High Integrity Protective Conductor

• Main Protective Bonding Conductor

• Supplementary Bonding Conductor

Which one of the following protective devices operates under earth fault conditions only?

• RCD

• RCBO

• Circuit breaker

• HBC Fuse

Refer to the following list of cartridge fuses. Which one would be selected to provide overcurrent to the fused connection unit to a 230v domestic heating central heating control system with a total load of 600 Watts?

• 3A

• 13A

• 16A

• 30A

Which one of the following protection methods applies when installing circuits using single-core cable?

• The cabled must be directly buried in the wall

• The cables must be clipped to the surface

• The cables must be enclosed in conduit

• The cables must be protected by an RCD

Which one of the following would most likely be the first to be damaged if the current in a cable exceeds its current carrying capacity?

• Cable core

• Cable Insulation

• Cable sheathing

• Cable Containment