Components Used in Electrical Installations part 2

Which of the following is a common component used in electrical installations?

• Resistor

• Capacitor

• Transformer

• All of the above

In electrical installations, a ______ is used to step up or step down voltage levels.

• Resistor

• Capacitor

• Transformer

What is the correct order of electrical components from the incoming supply to the appliances?

• Incoming supply, Meter, Suppliers fuse, Consumer unit, Appliances/circuits

• Incoming supply, Suppliers fuse, Meter, Consumer unit, Appliances/circuits

• Incoming supply, Consumer unit, Suppliers fuse, Meter, Appliances/circuits

• Incoming supply, Appliances/circuits, Suppliers fuse, Meter, Consumer unit

Fill in the blank: The component that follows the 'Meter' in the electrical supply chain is the ________.

• Incoming supply

• Suppliers fuse

• Consumer unit

• Appliances/circuits

Which of the following is a good conductor of electricity?

• Rubber

• Copper

• Plastic

• Glass

Fill in the blank: ______, plastic, and glass are good insulators.

• Copper

• Silver

• Rubber

• Aluminum

What is the use of a 1.5mm twin and earth cable?

• Ring main

• Lighting

• Smaller electric shower

• Larger electric showers

Fill in the blank: The central core is earth, which needs sleeving for protection, in ______ and yellow.

• Blue

• Brown

• Green

• Red

Which cable size is used for lights?

• 0.5mm

• 0.75mm

• 1.0mm

• 1.5mm

The correct selection of flex is important to prevent ______.

• Overheating

• Short circuit

• Power loss

• Voltage drop