Electrical Circuits and Components Quiz

Which of the following is NOT a typical electrical circuit found in a modern dwelling?

• Lighting circuit
• Kitchen ring main
• Radial power circuit
• Smoke alarm circuit

What is the main purpose of a consumer unit?

• To distribute electrical power throughout the dwelling
• To provide overcurrent protection for individual circuits
• To monitor energy usage
• To isolate the entire electrical system

What type of protection does an RCD provide?

• Overcurrent protection
• Earthing protection
• Leakage protection
• Surge protection

Which of the following fuse types is considered more modern and expensive than a rewireable fuse?

• Cartridge fuse
• Semi-enclosed fuse
• Rewireable fuse
• All of the above

Which cable type is typically used for extension cords and appliance leads?

• Armored cable
• Heat-resistant flex
• Twin and earth
• Flex cable

What is the primary purpose of cable containment in an electrical installation?

• To secure and protect cables
• To distribute electrical power
• To provide additional insulation
• To monitor energy usage

Which of the following is NOT a type of electrical back box?

• Galvanized steel single recessed box
• Plastic surface mounted double box
• Bakerlite plastic jointing box
• Wiring centre box

What is the purpose of an electrical fascia?

• To provide a connection point for cables
• To distribute electrical power
• To act as a cover plate for an outlet or switch
• To monitor energy usage

Which of the following is NOT a type of electrical fitting shown in the presentation?

• Adapters
• Socket outlets
• Switches
• Circuit breakers

What is the main function of a consumer unit's busbar?

• To distribute electrical power to individual circuits
• To provide overcurrent protection
• To monitor energy usage
• To isolate the entire electrical system