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- 1. Multiple Choice
Name the colour of each of the three wires in a mains plug.
Red
Blue
Green
Brown
Yellow and Green
- 2. Multiple Choice
Explain why each of the wires in a three-core mains cable is insulated.
To keep them warm
To keep them cool
To prevent electrical connection between them inside the cable
- 3. Multiple Choice
What is the name given to the blue wire?
Neutral Wire
Earth Wire
Live Wire
- 4. Multiple Choice
What is the name given to the brown wire?
Neutral Wire
Earth Wire
Live Wire
- 5. Multiple ChoiceWhat colour is the live wire in a mains plug?GreenBlueBrown
- 6. Multiple ChoiceThe fuse in a circuit melts when:An appliance isn't earthedToo much current flowsToo much voltage flows
- 7. Multiple ChoiceA double insulated appliance does not need:A fuseA earth wireA neutral wire
- 8. Multiple ChoiceWhat's the first thing you should do if someone is shocked electrically?Use the fire extinguisherCheck for breathing and heartbeatTurn off the power sourceRemove the person from the power source
- 9. Multiple Choice
The neutral wire carries the current...
towards the appliance
out of the appliance
- 10. Multiple Choice
The fuse used in an electric appliance should be rated __________ than the operating current.
higher
lower
- Answer choicesTagsAnswer choicesTags