9189 Electrical Powerpoint 3

What are the typical electrical circuits found in a modern dwelling?

• Ring main, Lighting, Power circuit (radial)

• Ring main, Heating, Power circuit (radial)

• Lighting, Heating, Power circuit (radial)

• Ring main, Lighting, Heating

How many ring mains (sockets) are typically found in a modern dwelling?

• 1

• 2

• 3

• 4

Where are the ring mains (sockets) typically located in a modern dwelling?

• One for downstairs, one upstairs, and one in the kitchen

• One for the living room, one for the bedroom, and one for the bathroom

• One for the garage, one for the attic, and one for the basement

• One for the hallway, one for the dining room, and one for the study

How many lighting circuits are typically found in a modern dwelling?

• 1

• 2

• 3

• 4

Where are the lighting circuits typically located in a modern dwelling?

• One in the living room and one in the bedroom

• One in the kitchen and one in the bathroom

• One upstairs and one downstairs

• One in the garage and one in the attic

How many power circuits are typically found in a modern dwelling?

• 1

• 2

• 3

• 4

What appliances might the power circuits in a modern dwelling be used for?

• Cooker, central heating, and alarm

• Refrigerator, washing machine, and dryer

• Television, computer, and phone charger

• Microwave, toaster, and coffee maker

What do consumer units house for radial and ring final circuits?

• Individual MCBs

• Individual RCDs

• Individual fuses

• Individual transformers

What do consumer units incorporate to provide protection against earth leakage?

• An MCB

• An RCD

• A fuse

• A transformer

As of 2019, what material must all newly installed consumer units be made of?

• Plastic

• Wood

• Metallic

• Ceramic