Energy Efficiency Quiz
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Questions and Answers

Which of the following consumes the most electricity?

  • Air-conditioning
  • An electric oven (correct)
  • A typical desktop computer
  • Heating and hot water
  • What is the main problem in terms of power consumption for home computers?

  • They are not efficient
  • They are expensive
  • They are always turned on
  • They consume a lot of electricity (correct)
  • What is the impact of turning off a computer at night?

  • It improves computer efficiency
  • It saves electricity (correct)
  • It harms the computer
  • It doesn't make a difference
  • What percentage of electricity consumed in America is used by big servers?

    <p>4%</p> Signup and view all the answers

    How has the number of servers in the world changed since 2000?

    <p>It has doubled</p> Signup and view all the answers

    What is the power consumption of a typical desktop and monitor together?

    <p>150 watts</p> Signup and view all the answers

    Which appliances should you look at first to cut power consumption?

    <p>air-conditioning, heating and hot water</p> Signup and view all the answers

    What percentage of electricity consumed in America is used by big servers?

    <p>4%</p> Signup and view all the answers

    How has the number of servers in the world changed since 2000?

    <p>doubled</p> Signup and view all the answers

    What are the gas-guzzlers of the computer world?

    <p>big servers</p> Signup and view all the answers

    Turning a computer off at night would certainly do no harm (though it might not be best for the computer). The gas-guzzlers of the computer world are the big servers that big firms use to store ______ data.

    <p>big</p> Signup and view all the answers

    A typical desktop and monitor together use perhaps 150 watts, and in “sleep” mode the consumption could be as little as ______ watts.

    <p>20</p> Signup and view all the answers

    Relax: the main problem is not the computer you keep at home. Most of those are fairly ______.

    <p>frugal</p> Signup and view all the answers

    The number of servers in the world has doubled since ______.

    <p>2000</p> Signup and view all the answers

    If you want to cut power consumption (whether to save the planet or to save money), look first to air-conditioning, heating and hot water, and then to the efficiency of ______.

    <p>appliances</p> Signup and view all the answers

    Study Notes

    Power Consumption Insights

    • Large servers consume the most electricity, especially in big firms where significant data is stored.
    • Home computers are generally efficient, but their continuous operation contributes to unnecessary electricity use.

    Turning Off Computers

    • Turning off a computer at night generally causes no harm, although it may not be ideal for system updates or tasks needing completion.

    Electricity Usage Statistics

    • Big servers account for about 4% of the electricity consumed in America.
    • Since 2000, the number of servers worldwide has doubled, indicating rapid growth in data storage and processing needs.

    Typical Power Usage

    • A typical desktop computer and monitor together use approximately 150 watts.
    • In "sleep" mode, power consumption can drop to as low as 5 watts, significantly reducing electricity use when not actively in use.

    Energy Efficiency Recommendations

    • Prioritize cutting power consumption in key areas such as air-conditioning, heating, and hot water systems.
    • Focus on enhancing the efficiency of appliances that use the most electricity in the home, rather than solely on individual devices like home computers.

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    Description

    Discover Effective Ways to Reduce Power Consumption and Save Money with This Quiz

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