Question 1

Improving standards of living have been repeatedly demonstrated to require increased energy consumption.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is NOT normally considered a biomass fuel?

Accepted Answer

A)  Wood
B)  Bark
C)  Waste wood chips
D)  Branches
E)  All of these are biomass fuels.F) All of the above
G) B) and D)

Question 3

Amorphous silicon collectors are currently being used in

Accepted Answer

A)  Lighthouses
B)  Watches
C)  Toys
D)  Roof tiles
E)  All of theseF) A) and B)
G) A) and C)

Question 4

A glass greenhouse on the south side of a building is an example of

Accepted Answer

A)  Parabolic collection
B)  An active solar heating system
C)  Passive heat absorption
D)  Cogeneration
E)  Charging fuel cells to increase efficiency in energy useF) None of the above
G) A) and E)

Question 5

Energy efficiency is a measure of

Accepted Answer

A)  Heat produced by a barrel of fuel
B)  Energy stored in a unit of fuel
C)  Energy produced compared to energy consumed
D)  Total energy consumed over a year divided by time spent
E)  Energy used per unit of timeF) A) and E)
G) A) and D)

Question 6

Since the 1920s, hydropower production has

Accepted Answer

A)  Risen, but not as fast as fossil fuel use
B)  Fallen due to disinterest
C)  Fallen due to a lack of available sites
D)  Become our most important energy source
E)  Stayed at about the same levelF) A) and D)
G) D) and E)

Question 7

United States companies currently dominate the $1 billion (US) per year market of wind technology.

Accepted Answer

A) True 
 B)False

Question 8

Photovoltaic cells work because solar energy striking their surface

Accepted Answer

A)  Causes the cells to liquefy as they heat
B)  Releases electrons, causing an electric potential in attached wires
C)  Is collected in the form of photons and sent through attached wires
D)  Causes an uneven magnetic charge to develop
E)  Changes to chemical energyF) None of the above
G) B) and D)

Question 9

The most effective technology developed so far to produce solar energy concentrated enough to run an industrial furnace or turbine is to use

Accepted Answer

A)  Parabolic mirrors
B)  Cogeneration.
C)  Passive heat absorption
D)  Photovoltaic cells
E)  CogenerationF) C) and D)
G) A) and C)

Question 10

Capturing waste heat in a thermal-electric plant can increase efficiency from 30 percent to 80 or 90 percent.

Accepted Answer

A) True 
 B)False

Question 11

Wind energy is an option that has few global supporters.

Accepted Answer

A) True 
 B)False

Question 12

The quickest and easiest way to save money on energy bills is to

Accepted Answer

A)  Install a new water heater
B)  Modify your energy-using behavior
C)  Put new insulation in your home
D)  Buy a more efficient automobile
E)  Install a new furnaceF) C) and E)
G) A) and B)

Question 13

Evaluate the use of biomass, hydropower, wind, and geothermal energy as potential large scale energy sources.In your evaluation provide the pros and cons and the context for which each energy source would best work.

Accepted Answer

Should contain some ...

Question 14

Tidal power stations operate by using

Accepted Answer

A)  The differential heat of inshore and offshore waters
B)  Electrolytic decomposition of saltwater
C)  Turbines that spin in the flow of tide water
D)  The energy from waves as they crash on the shore
E)  All of these togetherF) A) and B)
G) All of the above

Question 15

Ocean thermal electric conversion (OTEC)  uses _________ to produce usable energy.

Accepted Answer

A)  Warm surface water and cold deep seawater
B)  Hot water from below the seafloor
C)  Fossil fuel-heated seawater
D)  Heat from deep-ocean thermal vents
E)  Cold surface water and warm deep seawaterF) All of the above
G) A) and D)

Question 16

Which of the following is NOT a drawback of using windmills for energy?

Accepted Answer

A)  Windmills kill birds.
B)  Windmills are not always visually appealing.
C)  Windmills cannot be placed on shorelines.
D)  Wind is not always constant.E) All of the above
F) B) and C)

Question 17

A(n)  __________________ is used to remove hydrogen from various fuels to be used in fuel cells.

Accepted Answer

A)  Transformer
B)  Electrolyte
C)  Reformer
D)  Catalyst
E)  CathodeF) B) and D)
G) C) and D)

Question 18

Most of our energy waste in North America results from

Accepted Answer

A)  A failure to turn off lights
B)  Technological inefficiency
C)  The fact that more efficient energy conversion is not possible
D)  Overwhelming public ignorance of conservation issues
E)  The fact that energy conservation techniques are quite expensiveF) C) and D)
G) A) and D)

Question 19

Some highly efficient turbines can be submerged directly in a river and require only _______ to operate.

Accepted Answer

A)  Run-of-the-river flow
B)  Low-head dams
C)  A low, natural waterfall
D)  A slow trickle of water
E)  A high, natural waterfallF) B) and E)
G) A) and E)

Question 20

Geothermal energy uses ________ to produce usable heat or electricity.

Accepted Answer

A)  Naturally occurring hot groundwater
B)  Artificially heated water injected below ground
C)  Molten rock from below ground
D)  Underground radioactive decay
E)  Waste heat water from power plants that is stored undergroundF) A) and D)
G) All of the above

Exam 20: Sustainable Energy

Geothermal energy uses ________ to produce usable heat or electricity.

Correct AnswerverifiedShow Answer

United States companies currently dominate the $1 billion (US) per year market of wind technology.

Correct AnswerverifiedShow Answer

Some highly efficient turbines can be submerged directly in a river and require only _______ to operate.

Correct AnswerverifiedShow Answer

Most of our energy waste in North America results from

Correct AnswerverifiedShow Answer

Capturing waste heat in a thermal-electric plant can increase efficiency from 30 percent to 80 or 90 percent.

Correct AnswerverifiedShow Answer

A(n) __________________ is used to remove hydrogen from various fuels to be used in fuel cells.

Correct AnswerverifiedShow Answer

The quickest and easiest way to save money on energy bills is to

Correct AnswerverifiedShow Answer

Evaluate the use of biomass, hydropower, wind, and geothermal energy as potential large scale energy sources.In your evaluation provide the pros and cons and the context for which each energy source would best work.

Correct AnswerverifiedShould contain some ...View AnswerShow Answer

Since the 1920s, hydropower production has

Correct AnswerverifiedShow Answer

Which of the following is NOT normally considered a biomass fuel?

Correct AnswerverifiedShow Answer

Photovoltaic cells work because solar energy striking their surface

Correct AnswerverifiedShow Answer

A glass greenhouse on the south side of a building is an example of

Correct AnswerverifiedShow Answer

The most effective technology developed so far to produce solar energy concentrated enough to run an industrial furnace or turbine is to use

Correct AnswerverifiedShow Answer

Which of the following is NOT a drawback of using windmills for energy?

Correct AnswerverifiedShow Answer

Tidal power stations operate by using

Correct AnswerverifiedShow Answer

Energy efficiency is a measure of

Correct AnswerverifiedShow Answer

Wind energy is an option that has few global supporters.

Correct AnswerverifiedShow Answer

Improving standards of living have been repeatedly demonstrated to require increased energy consumption.

Correct AnswerverifiedShow Answer

Amorphous silicon collectors are currently being used in

Correct AnswerverifiedShow Answer

Ocean thermal electric conversion (OTEC) uses _________ to produce usable energy.

Correct AnswerverifiedShow Answer

Correct Answer
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