We could all stand to save a little more money. And while we don't give a second thought to buying a cup of coffee or a cable television subscription, these expenses add up over time. But fortunately, there's no shortage of gadgets and technology to help us beat back the high costs of everyday life.
How does an electricity usage monitor help people save money?
by shutting off electricity when it reaches a certain usage amount each month
by determining which appliances use the most energy
by limiting the amount of energy used for computer monitors
Which of the following is the best way to save money on long-distance domestic calling?
negotiating a lower rate with a phone company
dialing the number using Google Voice
using a prepaid phone card
Wind turbines save money by converting a stiff breeze into usable power. How long do the turbines last?
Low-flow showerheads save water, but they also save enough energy to power which of these appliances?
What's the name of the system that allows applications to dial telephones from a computer?
Application programming interface
Voice over Internet Protocol
How much energy can you save by using a programmable thermostat?
up to 50 percent
up to 20 percent
up to 10 percent
An array of smartphone applications allow consumers to scan product bar codes to compare prices between retailers. Which of the following is a measure that some retailers have taken in response?
banning smart phones in stores
attaching new bar codes to their store's products
automatically matching competitors' prices
The nPower Personal Energy Generator (PEG) converts the kinetic energy of human movement into useable energy for personal electronics. Which of the following devices is best charged with a PEG?
Residential wind turbines save money by transferring the wind's kinetic energy into which type of electricity?
direct current (DC)
alternating current (AC)
How much water is spared by installing and using low-flow showerheads?
10 to 20 percent
75 to 95 percent
25 to 60 percent
Which of these is a common type of energy waste that an electricity usage monitor can identify?
the two-plus hours of squandered time that goes into watching a Washington Wizards basketball game
In addition to those that scan barcodes, what other types of smartphone apps are designed to help shoppers save money?
coupon and deal-finding apps, like Coupon Sherpa and GasBuddy
An automatic drip coffeemaker can help users save money by lowering the cost of a cup o' joe. How much does it cost for a home-brewed cup from a 12-ounce (0.35-liter) bag of ground coffee?
While programmable thermostats can play a part in cutting energy costs, a 2008 study by Florida Power and Light revealed that the average user of this device actually used more energy than those who didn't. Why?
The users set their air conditioning temperatures too low.
Programmable thermostats require additional energy to operate.
The programmable thermostats were defective.
How much energy does the combination of a television cable box and DVR box use each year?
more than 1,000 kilowatt hours
more than 100 kilowatt hours
more than 500 kilowatt hours
Which of the following is NOT a common method for smartphone applications to get price-comparison information?
using a piece of external hardware to scan a bar code
using the phone's camera to scan a bar code
voice command from phone user
Federal regulations dictate that showerheads may not have flow rates exceeding how many gallons of water per minute?
5.5 (20.8 liters)
3 (11.4 liters)
2.5 (9.5 liters)
Skype makes which of these services more affordable.
Which of these is NOT a popular, less-costly alternative to cable TV?
Streaming services, like Netflix and Hulu
Writing, directing and starring in your on TV show, like <i>Three's Company</i>.
Web TV boxes, like Roku
What are the estimated monthly savings on an electricity bill yielded by a three-kilowatt wind turbine?