Filters
Question type

Study Flashcards

What is "Energy Star?"


A) an energy-efficiency rating system for automobiles
B) an energy-efficiency rating system for appliances
C) an energy-efficiency rating system for light bulbs
D) both A and B
E) both B and C

Correct Answer

verifed

verified

E

What is needed in order for a community like Samsø to switch to a greener lifestyle?

Correct Answer

verifed

verified

Most important is the buy-in and commitment of the citizens. If they do not want to do it and have a vested or a monetary interest in less-green alternatives, then the project will fail. Samsø was lucky to have an islander interested enough to visit the residents and champion the project. It wouldn't have worked nearly as well if an outsider had tried to take over. But it is also important to have resources. For example, if a community is not located in an area that receives much wind, then that technology is not viable. A community in the northern latitudes or other region with little solar radiation would not find solar energy technologies feasible. And finally, the community must have the money to commit to the project. Renewable energy technologies are not cheap to build. Samsø was fortunate enough to win the contest put forth by the Danish government and also to be a prosperous community in itself.

Infographic 23.1 Infographic 23.1   -Infographic 23.1 describes the worldwide production of renewable energy by source in 2013. The best all-around source of renewable energy is ____________________. A)  solar energy B)  biomass C)  hydroelectric energy D)  wind E)  There is not enough information in the graph to make a choice. -Infographic 23.1 describes the worldwide production of renewable energy by source in 2013. The best all-around source of renewable energy is ____________________.


A) solar energy
B) biomass
C) hydroelectric energy
D) wind
E) There is not enough information in the graph to make a choice.

Correct Answer

verifed

verified

Infographic 23.7. Infographic 23.7.   -Refer to Infographic 23.7. What two methods do the citizens of Samsø use to heat their water in an environmentally friendly manner? A)  They use solar energy and also electricity from the wind turbines to heat their water. B)  They use solar energy and fossil fuels to heat their water. C)  They burn straw and use geothermal energy to heat their water. D)  They use solar energy and geothermal energy to heat their water. E)  They use wind turbines and hydroelectric power to heat their water. -Refer to Infographic 23.7. What two methods do the citizens of Samsø use to heat their water in an environmentally friendly manner?


A) They use solar energy and also electricity from the wind turbines to heat their water.
B) They use solar energy and fossil fuels to heat their water.
C) They burn straw and use geothermal energy to heat their water.
D) They use solar energy and geothermal energy to heat their water.
E) They use wind turbines and hydroelectric power to heat their water.

Correct Answer

verifed

verified

___________________ energy is replenished over short time scales or is perpetually available.


A) Sustainable
B) Reusable
C) Renewable
D) Fossil fuel
E) None of these answers

Correct Answer

verifed

verified

What is the relationship between the wind turbines and the automobiles used on Samsø?


A) They only drive electric cars.
B) They only drive cars produced on the island by wind power.
C) The clean energy produced by the turbines offsets the fossil fuels used by the cars.
D) The cars run on wind power.
E) There is no relationship between the cars and the wind turbines.

Correct Answer

verifed

verified

Table 23.2. Table 23.2.   -Refer to Table 23.2. What does  payback time  mean in terms of conservation of energy? A)  how long it takes to pay for an appliance or new technology at today's interest rates B)  how long it takes for the savings to equal the original cost of the technology C)  how long it takes to find investors for the new technology D)  the amount of money required for the development of the technology E)  the amount of time before the manufacturer starts to make a profit -Refer to Table 23.2. What does "payback time" mean in terms of conservation of energy?


A) how long it takes to pay for an appliance or new technology at today's interest rates
B) how long it takes for the savings to equal the original cost of the technology
C) how long it takes to find investors for the new technology
D) the amount of money required for the development of the technology
E) the amount of time before the manufacturer starts to make a profit

Correct Answer

verifed

verified

Switching from incandescent bulbs to compact fluorescents (CFL) provides a twofold benefit during the summer. Why?


A) CFL bulbs use less energy.
B) Incandescent bulbs produce excess heat.
C) CFL bulbs produce excess heat.
D) Both A and B are correct.
E) Both B and C are correct.

Correct Answer

verifed

verified

Which of the following choices are involved in wind turbine technology?


A) the placement of long blades at a height that catches the wind
B) the designing wind blades to allow for maximum lift for rotation
C) internal gearing to convert the blade rotation into the turning of a generator
D) a spinning generator that produces an electric current
E) all of these answers

Correct Answer

verifed

verified

Choose the energy source that is most renewable.


A) coal
B) biodiesel
C) oil
D) natural gas
E) nuclear energy

Correct Answer

verifed

verified

________________ energy is the heat stored underground, contained in either rocks or fluids.


A) Wind
B) Hydroelectric
C) Biomass
D) Geothermal
E) Solar

Correct Answer

verifed

verified

Turning off lights when you leave a room or switching to CFL or LED lighting is an effective conservation method because lighting usually accounts for ___________ of average home electrical costs.


A) 45%
B) 50%
C) 25%
D) 10%
E) 35%

Correct Answer

verifed

verified

According to energy advisors, what produces the "greenest" kilowatt of electricity?


A) photovoltaic cells
B) run-of-the-river hydroelectric systems
C) geothermal heat pumps
D) wind turbines
E) an "unused" kilowatt

Correct Answer

verifed

verified

Which of the following electricity energy sources is least expensive for the consumer?


A) fossil fuels
B) solar energy
C) wind
D) geothermal energy
E) nuclear energy

Correct Answer

verifed

verified

The people of Samsø discovered the best way to achieve energy independence is to____??________.


A) use solar energy
B) use wind energy
C) conserve energy
D) use geothermal energy
E) buy electric cars

Correct Answer

verifed

verified

One of the main reasons why Samsø was able to convert fully to renewable energy sources is because of______________.


A) grants
B) citizen investors
C) government bonds
D) bank loans
E) foreign aid

Correct Answer

verifed

verified

B

Which renewable energy source has the greatest environmental footprint?


A) geothermal energy
B) biomass
C) wind
D) active solar energy
E) ocean (tidal)

Correct Answer

verifed

verified

_____________________ energy is renewable and has a low environmental impact.


A) Sustainable
B) Reusable
C) Renewable
D) Fossil fuel
E) None of these answers

Correct Answer

verifed

verified

What do energy advisors mean by the phrase "the greenest kilowatt is the one you never use?"

Correct Answer

verifed

verified

They are referring to the fact that cons...

View Answer

A sustainable energy source has which of the following characteristics?


A) It is renewable.
B) It has a low environmental footprint.
C) It is affordable to the consumer.
D) A, B, and C are all correct.
E) None of these answers are correct.

Correct Answer

verifed

verified

Showing 1 - 20 of 64

Related Exams

Show Answer