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Topic 4.7
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1
The electrical energy you use at home is measured in…
A)kilowatts.
B)kilowatt hours.
C)joules.
D)watts.
2
How much electrical energy would be used if a 100 Watt light bulb was left on for ten hours?
A)1 kWh
B)10 kWh
C)100 kWh
D)1000 kWh
3
Which of the following time periods are classified as on-peak for winter energy use?
A)11 p.m. to 7 a.m., Monday to Friday
B)11 a.m. to 5 p.m. and 8 p.m. to 10 p.m., Monday to Friday
C)7 a.m. to 11 a.m. and 5 p.m. to 8 p.m., Monday to Friday
D)All day, Saturday and Sunday
4
The EnerGuide label…
A)s indicates that an appliance exceeds standards for energy efficiency.
B)indicates how much energy is used by an appliance in one week.
C)indicates how much energy is used by an appliance in one month.
D)indicates how much energy is used by an appliance in one year.
5
Appliances that have the Energy Star® label…
A)meet minimal standards for energy efficiency.
B)are cheaper to purchase than other appliances in the same category.
C)use ten to fifty percent less energy than standard products in the same category.
D)use ten to fifty percent less energy than all other products.
6
What is phantom load?
A)the electrical energy used by a device when the device is off
B)the electrical energy used by a device when the device is on
C)the electrical energy used as it moves through an insulator
D)the energy cost that occurs when unplugging an appliance
7
Which of the following will save your family electrical energy and money?
A)using higher wattage light bulbs
B)unplugging devices when they are not in use
C)removing the third prong from electrical cords
D)changing from a front-loading washing machine to a top-loading washing machine





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