Cannock Terminations and Connections

What is the insulating material inside a MI cable called?

• PVC

• magnesium dioxide

• manganese dioxide

• magnesium oxide

Which one of the following is not good practice when carrying out safe isolation?

• locking a fuseboard cover and keeping the key in your pocket

• Locking the fuseboard cover and placing warning notices

• Using a mcb locking device prior to locking the fuseboard cover

• Turning off the circuit breaker and starting work

When wiring smoke detectors on several floors

in a domestic property what is the interlink termination for ?

• For a conductor which if one detector activates the others also activate

• So you dont have to wire a CPC

• To ensure the live and Neutral are tight

• It links to satellites

What size cable is usually used for a 'ring main' of socket outlets in a domestic dwelling

• 1.0mm

• 10mm

• 6mm

• 2.5mm

By what means are the black and grey 'switched lives' in a 2-way and intermediate lighting circuit identified

• Blue Sleeving

• Red Sleeving

• Brown Sleeving

• Green/Yellow Sleeving

What are the live wires between switches called when wiring two way switches

• Switched feeds

• Zappers

• Strappers

• Tappers

What colour is a neutral conductor in a single phase supply

• Blue

• Brown

• Red

• Green/Yellow

What colour are the three line conductors on a three phase system

• Brown Black Grey

• Brown Blue Yellow

• Blue Green/Yellow

• Red Yellow Blue

A thermostatically-controlled water heater is rated at 3kw at 230v. What would be the most suitable circuit to install this equipment on?

• A dedicated 10A radial circuit

• A dedicated 16A radial circuit

• A dedicated 6A radial circuit

• A dedicated 40A radial circuit

Which conductor joins the circuit protective conductors to the Distribution company's supplied earth connection, at the mains intake position of a domestic house?

• Main equipotential bonding conductor

• CPC

• Main earthing conductor

• Supplementary bonding conductor