1.
What initial step should you take to help reduce energy costs around the house?
Correct Answer
A. Locate & seal drafts around doors, windows, baseboards with caulk or weather stripping.
Explanation
Sealing up your home is one of the most cost effective ways to improve your home’s comfort and reduce energy costs. Hidden gaps and cracks in a home can add up to as much airflow as an open window and cause your heating and cooling system to work harder, use more energy, and cost more.
Next, inspect your attic, to be sure it’s properly insulated — it’s the easiest place to add insulation and make a big impact on energy bills. Together, sealing air leaks and adding insulation can reduce your annual energy bill by 10 percent and improve comfort.
2.
The energy used in your home can be responsible for how much more pollution than your car?
Correct Answer
B. Twice as much
Explanation
Making your home more energy-efficient helps to reduce air pollution and prevent global warming. The average house is responsible for twice the greenhouse gas emissions as the average car, annually (22,000 lbs. vs. 11,500 lbs.). That’s because every time you flip on a light switch, run your dishwasher or turn on your air conditioner or furnace, you use energy, which means more pollution from power plants. The more energy we save at home, the more we can help protect the environment.
3.
When is the best time to use a ceiling fan?
Correct Answer
C. Both Winter & Summer
Explanation
Ceiling fans improve comfort in both winter and summer. During winter, run them clockwise (upward motion) at a low speed, to circulate heat that gathers near the ceiling. In summer, or in hot climates, run them counterclockwise (or downward) to cool. Most fans have a switch to reverse the spin. When cooling, always turn off your ceiling fan when you leave the room, just as you do your lights (a fan only cools you, not a room, by creating a “wind-chill effect”).
4.
How Much power does a Compact Fluorescent Light Bulb (CFL) use compared to a standard light bulb?
Correct Answer
B. One-Third
Explanation
An ENERGY STAR-qualified compact fluorescent light bulb (CFL) will save about $30 over its lifetime, and pays for itself in about 6 months. Upgrading 15 of the inefficient incandescent light bulbs in your home could save you about $50 per year.
5.
How many degrees must you dial down your water heater's thermostat to knock 3 to 5 percent off your water-heating bill?
Correct Answer
A. 10 Degrees
Explanation
You must dial down your water heater's thermostat by 10 degrees to knock 3 to 5 percent off your water-heating bill. Most water heaters come preset at 140 degrees, which has the added risk of scalding. The Energy Department recommends most households lower it to 120 degrees.
6.
The cost of heating water for your home may amount to as much as what percent of your entire utility bill?
Correct Answer
C. 15%-20%
Explanation
The cost of heating water for your home may amount to as much as 15-20 percent of your entire utility bill depending if it is a gas, oil, or electric heater.
7.
How long does it take for a standard 100-watt light bulb to consume 100 watts of energy?
Correct Answer
C. 1 Hour
Explanation
It takes 1 hour for a 100-watt light bulb to consume 100 watts of energy.
8.
Which electrical device uses the most standby power?
Correct Answer
A. Garage-door opener
Explanation
Generating the electricity needed to keep the opener ready means emitting more than 50 pounds of CO2 a year.
9.
If you can do one thing only to save on electricity, which one would have the most impact.
Correct Answer
D. Limit the time you use clothes dryers
Explanation
While its important and helpful to be aware of energy vampires, your energy footprint shrinks dramatically when you stop over-drying clothes and linens.
10.
What Energy Solution is said to have the potential for 57% of needed carbon cuts by 2030?
Correct Answer
C. Energy efficiency
Explanation
The International Energy Agency's scenario for stabilizing the atmospheric concentration of carbon dioxide at 450 parts per million would get 57 percent of the cuts from efficiency gains.