Home Economics - Services to the Home

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  1. What is a circuit breaker?
    These are switches that switch off if there is a fault
  2. State the function of a circuit breaker
    To switch off electricity if there is a fault
  3. How does a fuse work?
    This blows if there is a fault and breaks the flow of electricity
  4. What is the brown wire in a plug called?  What does it do?
    Live - brings electricity to the appliance
  5. What is the blue wire in a plug called?  What does it do?
    Neutral - returns the electricity to the ESB
  6. What is the yellow/green wire in a plug called?  What does it do?
    Earth - if something goes wrong electricity will flow to the ground and not through the person
  7. State four points regarding electrical safety
    1. Do not touch anything with wet hands

    2. Do not overload sockets

    3. Do not bring electrical appliances into a bathroom

    4. Use the correct fuse

    5. Do not repiar damaged leads
  8. List four things you should do/not do if you were to smell gas at home?
    1. Open doors and windows

    2. Do not smoke

    3. Do not turn on a switch

    4. Turn the gas off at the meter

    5. Call the gas company
  9. Why is chlorine added to domestic water supplies?
    To kill bacteria
  10. Why is fluroine added to domestic water supplies?
    For strong teeth and bones
  11. Why should you not drink water from bathroom taps?
    Because it comes from the tank in the attic and is not freshwater
  12. How can water be heated in the home?
    1. Electric showers

    2. Immersion in the hot press

    3. Back boiler

    4. Central heating

    5. Solar panels
  13. Why is the kitchen normally placed under a window?
    Because it is nice to look out the window while working



    Easily plumbed
  14. What is the purpose of a U or S bend on a sink?
    It stops germs and smells from coming back up the plughole
  15. Why do water pipes sometimes burst in winter?
    Because water expands when frozen
  16. What should you do if you have a burst pipe?
    Turn off the water at the mains

    Run cold taps to clear the pipes

    Turn off heating

    Call a plumber
  17. List four different types of lighting
    1. Tungsten filament bulb

    2. Halogen bulbs

    3. Fluorescent tubes

    4. CFLs

    5. LED bulbs
  18. Name and describe the three different methods of heat transfer
    1. Conduction - heat travels along something solid and the whole object becomes hot eg. storage heater

    2. Convection - air or water is heated, rises and is replaced by cool air or water eg. fan heater

    3. Radiation - heat rays heat the object or person they shone on eg. bar fire
  19. What is a heating thermostat?
    It can be set for a certain temperture and when it is reached, the thermostat switches the heating system off
  20. How should an attic be insulated?
    With fibreglass, wool and condensed foam
  21. What is a Building Energy Rating certificate?
    This is an energy rating of your house and it tells you how energy efficient your house is

    It goes from a scale of A to G
  22. Why is good ventilation necessary in the home?
    It replaces stale air with fresh air

    It stops condensation

    It stops the room from getting too warm
  23. Suggest four different ways resources can be converted in the home
    1. Choose appliances with a good energy rating

    2. Have a lagging jacket on hot water tank

    3. Have showers instead of baths

    4. Use thermostats to heat the room

    5. Use energy efficient light bulbs

    6. Turn off TV and lights when not using them
Card Set:
Home Economics - Services to the Home
2013-03-19 00:21:49
Services Home

Services to the Home
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