Quiz about Unit 6 Test - Fall 2024 50 Qsts

Question 1

An industry uses natural gas for manufacturing and uses the waste heat to produce electricity. This is an example of which of the following processes?

Accepted Answer

Cogeneration

Answer

Electrolysis

Answer

Gas hydration

Answer

Gasification

Answer

Reclamation

Question 2

Converts solar energy directly into electrical energy

Accepted Answer

Photovoltaics

Answer

Geothermal

Answer

Biomass

Answer

Hydroelectric

Answer

Hydrogen fuel

Question 3

Between 1960 and 1970, world oil consumption approximately doubled. Which of the following explanations is consistent with this increase?

Accepted Answer

Increased industrialization and economic growth worldwide

Answer

A significant decrease in the number of automobiles

Answer

A global shift to renewable energy sources

Answer

A major reduction in air travel

Question 4

Throughout the world, especially the less-developed countries, burning wood or other biomass for heating or cooking in homes is common. One negative environmental impact of this practice is the production of particulates indoors, which can be a health hazard to humans.

Accepted Answer

Installing effective ventilation systems in dwellings

Answer

Updating dwellings with well-sealed windows

Answer

Planting native plants around the dwelling

Answer

Equipping dwellings with rainwater collection systems

Question 5

Which of the following best describes the conditions under which peat is formed?

Accepted Answer

Partially decayed vegetation is placed under high-pressure, anaerobic, acidic conditions.

Answer

Partially decayed vegetation is placed under low-pressure, aerobic, acidic conditions.

Answer

Partially decayed vegetation is placed under high-pressure, anaerobic, alkaline conditions.

Answer

Partially decayed vegetation is placed under low-pressure, aerobic, alkaline conditions.

Question 6

Which of the following is a drawback to using biofuels, such as ethanol, as a fuel source?

Accepted Answer

There is high energy investment in producing and processing the crops needed for ethanol production.

Answer

Ethanol-blended gasoline has higher carbon emissions than petroleum alone.

Answer

The global demand for biofuels is continually decreasing.

Answer

Ethanol-blended gasoline increases the likelihood of freezing gas lines in winter months.

Question 7

Which of the following best explains the process of electricity generation in a hydrogen fuel cell?

Accepted Answer

At the anode, hydrogen is oxidized and electrons flow in a circuit to the cathode. At the cathode, oxygen reacts with the hydrogen to produce water. Water and heat are by-products of the reaction.

Answer

At the cathode, water reacts with oxygen to release hydrogen and heat. Electricity is generated as the bonds form between hydrogen and oxygen. The by-product of the reaction is heat.

Answer

At the cathode, hydrogen is reduced and then electrons flow to the anode to generate electricity. Oxygen is produced at the cathode. Oxygen and heat are the by-products of the reaction.

Answer

At the anode, hydrogen is oxidized and electrons pass through an electrolyte to the cathode. There, the protons react with water to produce oxygen. Water and heat are by-products of the reaction.

Question 8

Which of the following describes an environmental problem that can result from the combustion of fossil fuels to generate electricity?

Accepted Answer

Acid rain formation

Answer

Increased biodiversity

Answer

Ozone layer recovery

Answer

Decrease in greenhouse gases

Question 9

Extraction of natural gas by the process of hydraulic fracturing (fracking) is most likely to result in which of the following environmental problems?

Accepted Answer

Groundwater contamination

Answer

Ozone depletion

Answer

Eutrophication

Answer

Denitrification

Answer

Desertification

Question 10

Hydraulic fracturing, or fracking, is the pumping of highly pressurized water with a mixture of sand and chemicals into boreholes to

Accepted Answer

create cracks within the rock in order to provide pathways for the release of gas and oil

Answer

pulverize the rock in order to let gas and oil rise through the soil horizons

Answer

reopen old mine shafts, from which gas and oil can be collected

Answer

create seismic movement and artificial earthquakes in order to liberate gas and oil

Answer

supersaturate the rock with the fracking fluid, which scrubs gas and oil from the rock by abrasion

Question 11

In the majority of less developed countries, the major source of energy for domestic use is which of the following?

Accepted Answer

Biomass

Answer

Oil

Answer

Coal

Answer

Nuclear

Answer

Geothermal

Question 12

Is renewable

Accepted Answer

Solar

Answer

Uranium-238

Answer

Coal

Answer

Natural gas

Answer

Oil

Question 13

Of the following sources, which supplies the most commercial energy in the world today?

Accepted Answer

Oil

Answer

Solar

Answer

Biomass

Answer

Nuclear

Answer

Hydroelectric

Question 14

17. Which of the following would be the best location for a wind farm with ten industrial turbines?

Accepted Answer

A remote coastal region with strong, consistent winds

Answer

A densely populated urban area

Answer

A heavily forested national park

Answer

A valley surrounded by tall mountains

Question 15

Which of the following is a characteristic of nonrenewable energy sources that distinguishes them from renewable energy sources?

Accepted Answer

Nonrenewable energy sources typically take a longer time to replenish than renewable energy sources do.

Answer

The construction of power plants that use nonrenewable energy sources is typically more expensive than the construction of those that use renewable energy sources.

Answer

Nonrenewable energy sources are typically less harmful to wildlife and ecosystems than renewable energy sources are.

Answer

Nonrenewable energy sources typically require additional new technology in order to be used than renewable energy sources do.

Question 16

Which of the following statements correctly explains the role of fossil fuels in the production of energy?

Accepted Answer

The combustion of fossil fuels heats water to produce steam, which then turns a turbine.

Answer

The steam released from the combustion of fossil fuels turns a generator, which then powers a turbine.

Answer

The heat released from burning fossil fuels rises and turns a turbine, which then releases carbon dioxide.

Answer

Steam produced from a turbine ignites the fossil fuels, which then powers the generator.

Question 17

Which of the following would be most likely to be used as a fuel source for electricity generation in the plant displayed in the diagram?

Accepted Answer

Uranium

Answer

Coal

Answer

Natural Gas

Answer

Solar Energy

Question 18

There are various stages in the formation of coal as heat and pressure are increased and moisture content is decreased. These stages, in order, are

Accepted Answer

peat, lignite, bituminous, anthracite

Answer

bituminous, peat, lignite, anthracite

Answer

peat, lignite, anthracite, bituminous

Answer

lignite, bituminous, anthracite, peat

Answer

anthracite, bituminous, peat, lignite

Question 19

Which of the following is a way for the government to encourage efficient energy use?

Accepted Answer

Requiring higher fuel economy standards for new cars

Answer

Implementing government subsidies to keep gasoline prices low

Answer

Raising the speed limit from 55 to 70 miles per hour

Answer

Limiting the development of public transportation systems

Answer

Removing all taxes from gasoline at the fuel pump

Question 20

Which of the following is the primary environmental problem associated with the use of nuclear power to generate electricity?

Accepted Answer

Disposal of radioactive waste

Answer

Radon leaking into buildings

Answer

Production of greenhouse gases such as carbon dioxide

Answer

Depletion of the ozone layer

Answer

Production of acid rain

Question 21

25. Which of the following is considered an advantage of using nuclear power to generate electricity?

Accepted Answer

It produces large amounts of energy with low greenhouse gas emissions

Answer

It is the cheapest source of energy

Answer

It is completely renewable

Answer

It does not produce any waste

Question 22

The source whose use is a direct cause of deforestation

Accepted Answer

Biomass

Answer

Wind

Answer

Tidal energy

Answer

Nuclear fission

Answer

Sunlight

Question 23

The source that is not renewable

Accepted Answer

Nuclear fission

Answer

Biomass

Answer

Wind

Answer

Tidal energy

Answer

Sunlight

Question 24

Purity is a major factor in determining the type of coal used for energy. Which of the following types of coal are correctly paired with a description of its purity and common use?

Accepted Answer

Anthracite is considered the highest grade coal because it is almost pure carbon, and it is often used for domestic heating.

Answer

Coking coal is most widely available and contains 60-86% carbon, which makes it ideal for use in coal power plants.

Answer

Steam coal has a high carbon content with low amounts of impurities, which makes it ideal for use in the steel industry.

Answer

Lignite is the most mature and purest form of coal, and it is often used for large-scale power generation.

Question 25

Which of the following is the best example of cogeneration?

Accepted Answer

A coal-fired power plant captures waste heat and uses it to heat adjacent buildings.

Answer

A power plant uses both coal and natural gas as fuel.

Answer

A trash-to-steam power plant accepts both residential and commercial waste.

Answer

Several power plants supply the same city with electrical energy.

Answer

Emissions from power plants are captured and stripped of sulfur for commercial sale.

Question 26

Which of the following statements about geothermal energy is accurate?

Accepted Answer

The location of geothermal energy sources ranges from short distances below ground to miles below the surface.

Answer

While geothermal energy can heat buildings directly, it is not used to generate electricity.

Answer

Steam from underground sources must be condensed before it can be used aboveground.

Answer

In some parts of the world, geothermal sources are used to power steam locomotives.

Question 27

Which of the following accurately describes a fuel cell vehicle?

Accepted Answer

Fuel cell vehicles use hydrogen to generate electricity that runs the motor.

Answer

Fuel cell vehicles run on both an internal combustion engine and a backup battery.

Answer

Fuel cell vehicles are able to convert waste oil from the food industry into ethanol, which is burned as a source of power.

Answer

Fuel cell vehicles generate energy by creating a flow of electrons in a semiconducting material such as silicon.

Answer

Fuel cell vehicles use methane to heat water, which creates steam that turns a turbine to generate electricity.

Question 28

Which of the following countries has the largest coal reserves?

Accepted Answer

China

Answer

Saudi Arabia

Answer

India

Answer

France

Answer

Japan

Question 29

34. Which of the following actions would reduce global greenhouse emissions?

Accepted Answer

Promoting renewable energy sources

Answer

Increasing the use of fossil fuels

Answer

Expanding deforestation

Answer

Raising industrial emissions

Question 30

Which of the following is a true statement about passive solar heating?

Accepted Answer

It is based in part on the principle of the greenhouse effect.

Answer

It is effective only during the summer months.

Answer

It is not used to heat commercial buildings.

Answer

It is not efficient because it cannot produce high-quality energy.

Answer

It produces more pollution than heating with an electric heat pump.

Question 31

In an apartment building, exhaust from a gas-powered electrical generator is captured to produce hot water to heat a swimming pool. Which of the following is illustrated by this process?

Accepted Answer

Cogeneration

Answer

Synergy

Answer

Synfuels

Answer

Energy recovery

Question 32

Which of the following is a true statement concerning the production of electricity in conventional nuclear power plants using fission reactors?

Accepted Answer

Thermal energy is converted into mechanical energy and then to electrical energy, as in coal-burning power plants.

Answer

New nuclear power plants will be built without containment structures, due to the increased insulation in the reactor core.

Answer

Regularly scheduled releases of radioactive gases during production are well below the maximum contamination levels set by the EPA (Environmental Protection Agency).

Answer

Nuclear production of electricity is much less expensive per kilowatt-hour than production of electricity at a coal-burning or natural-gas-fueled power plant.

Answer

Storage of nuclear waste is no longer an issue, because power plants are now storing all wastes on-site in specialized containment units.

Question 33

Buildings designed to partially heat rooms by passive solar heating rely on

Accepted Answer

materials that absorb and store solar energy to warm the room

Answer

solar cells to generate electricity to power a heater in the room

Answer

solar collectors to warm water that is pumped into the room

Answer

warm water pumped from underground to warm the room

Question 34

Which of the following is a disadvantage of using nuclear energy as a source of electricity?

Accepted Answer

Spent fuel rods must be disposed of properly.

Answer

Energy production is not consistent from day to day.

Answer

Cooling towers release contaminants into the atmosphere.

Answer

Volatile organic compounds are released into groundwater.

Question 35

Which of the following negative consequences is most often associated with using biomass for energy production?

Accepted Answer

Using biomass for energy production can result in local deforestation.

Answer

Using biomass for energy production requires long-term storage for radioactive waste.

Answer

Using biomass for energy production can increase salinization in agricultural fields.

Answer

Using biomass for energy production releases carbon sequestered in fossil fuels into the atmosphere.

Question 36

Which of the following is the most valid inference regarding electricity production, based on the graph above?

Accepted Answer

Electricity production from coal began to decrease in 2008 because of the increasing use of natural gas and renewable energy.

Answer

Electricity production from coal began to decrease in 2008 because of shortages in coal supplies.

Answer

The use of nuclear energy increased from 1970 to 2010 because of the low cost of constructing nuclear power plants.

Answer

The use of nuclear energy increased from 1970 to 2010 because of shortages in coal supplies.

Answer

Renewable energy has not increased as much as nuclear energy has since 1970 because of federal laws restricting construction of wind farms.

Question 37

Refer to the graph 'WIND-GENERATED ELECTRICITY IN THE UNITED STATES.' Which of the following most likely had a direct influence on the trend shown in the graph for the electricity generation from wind?

Accepted Answer

Increased subsidies for renewable energy

Answer

Improved efficiency in hydraulic fracturing

Answer

A decrease in available coal for electrical generation

Answer

A decrease in the efficiency of photovoltaic cells

Question 38

Scientists are looking for new locations to generate electricity using geothermal energy. Which of the following locations would be the best choice for a geothermal energy generating plant?

Accepted Answer

Near tectonic plate boundaries

Answer

Near fossil fuel resources

Answer

Near the equator

Answer

Near warm ocean currents

Question 39

Which of the following best describes the process of electricity generation at a nuclear power plant?

Accepted Answer

Nuclear power is generated through fission, which releases a large amount of heat. The heat is used to generate steam, which turns a turbine that powers a generator.

Answer

Nuclear power is generated when photons are converted to a direct current using a semiconducting material such as silicon. An inverter is used to convert the direct-current electricity into an alternating current.

Answer

Nuclear power is generated from the thermal energy of Earth, which is a result of radioactive decay. The water underground is turned to steam, which turns a turbine to produce electricity.

Answer

Nuclear power is generated from the combustion of mined uranium, which provides enough heat to power a generator. The generator turns a turbine to create electricity.

Question 40

A developer intends to use passive solar heating in a new construction project in Minnesota in an effort to reduce electricity costs for the property owners. Which of the following should be employed to maximize the benefit of passive solar heating?

Accepted Answer

Install south-facing glazed windows in the home and dark surfaces to cover the walls and floors.

Answer

Concentrate solar energy on the roof using mirrors to heat water that is then used to generate electricity.

Answer

Plant fast-growing trees near the windows of the property to increase shading in the fall and winter.

Answer

Use photovoltaic cells to convert solar energy into electricity during peak sunlight to charge a battery that can be used for heating at night.

Question 41

This energy source is used to generate electricity with photovoltaic (PV) cells.

Accepted Answer

Solar Energy

Answer

Wind Energy

Answer

Geothermal Energy

Answer

Nuclear Energy

Question 42

Geothermal energy is the main energy source at this location because it is located on a large divergent boundary.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 43

Which of the following is the most practical solution to maximizing energy production at wind farms while minimizing the risk to wildlife?

Accepted Answer

Turn off turbines during periods of maximum migration.

Answer

Turn on turbines only at night when most birds and bats are not flying.

Answer

Turn on turbines only when winds are below 5 mph.

Answer

Limit the height of turbines to 10 meters and the width of the blades to 5 meters.

Unit 6 Test - Fall 2024 50 Qsts

50 questions

A major limitation of using photovoltaic cells to generate electricity is that they

An industry uses natural gas for manufacturing and uses the waste heat to produce electricity. This is an example of which of the following processes?

Converts solar energy directly into electrical energy

Between 1960 and 1970, world oil consumption approximately doubled. Which of the following explanations is consistent with this increase?

Throughout the world, especially the less-developed countries, burning wood or other biomass for heating or cooking in homes is common. One negative environmental impact of this practice is the production of particulates indoors, which can be a health hazard to humans.

Which of the following best describes the conditions under which peat is formed?

Which of the following is a drawback to using biofuels, such as ethanol, as a fuel source?

Which of the following best explains the process of electricity generation in a hydrogen fuel cell?

Which of the following describes an environmental problem that can result from the combustion of fossil fuels to generate electricity?

Extraction of natural gas by the process of hydraulic fracturing (fracking) is most likely to result in which of the following environmental problems?

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