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Test your basic knowledge |
Energy Efficiency And Renewable Energy
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What are the advantages of hydropower?
The advantages of hydropower include high net energy yield - low cost electricity - long life span - no carbon dioxide emissions during operation - flood control below dam - water for irrigation - and reservoir development. Disadvantages include high
Hydropower
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
Micropower Systems
2. What are the advantages of hydrogen gas?
The advantages of using smaller - decentralized micropower sources include size - fast production and installation - high energy efficiency - low or no CO2 emissions - low air pollution - easy repair - reliable - increased national security - and eas
The advantages of hydrogen gas include the fact that it can be produced from water - the low environmental impact - no carbon dioxide emission - competitive price - ease of storage - safety - and high efficiency. Disadvantages include energy needed t
Solar Collector
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
3. Also known as Energy Efficiency; Percentage of the total energy input that does useful work and is not converted into low-quality - usually useless heat in an energy conversion system or process. See energy quality - net energy. Compare material effi
The advantages of biomass include large potential supplies - moderate costs - no net carbon increase - and use of agricultural - timber - and urban wastes. Disadvantages include nonrenewable resource if not harvested sustainably - moderate to high en
Material Efficiency
Geothermal Energy
Energy Productivity
4. Production of two useful forms of energy - such as high-temperature heat or steam and electricity - from the same fuel source.
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
Resource Productivity
Cogeneration
CHP System
5. Device for collecting radiant energy from the sun and converting it into heat. See active solar heating system - passive solar heating system.
Solar Energy
Hydropower
Solar Collector
Material Efficiency
6. What are the advantages of geothermal energy?
The advantages of geothermal energy include very high efficiency - low carbon dioxide emissions - low cost and land use - low land disturbance - and moderate environmental impact. Disadvantages include scarcity of suitable sites - potential depletion
Combined Heat and Power System
The advantages of biomass include large potential supplies - moderate costs - no net carbon increase - and use of agricultural - timber - and urban wastes. Disadvantages include nonrenewable resource if not harvested sustainably - moderate to high en
The advantages of hydropower include high net energy yield - low cost electricity - long life span - no carbon dioxide emissions during operation - flood control below dam - water for irrigation - and reservoir development. Disadvantages include high
7. Device that converts radiant (solar) energy directly into electrical energy. Also called a solar cell.
Energy Productivity
Solar Energy
The advantages of improving energy efficiency include benefits to the environment - people - and the economy through prolonged fossil fuel supplies - reduced oil imports - very high net energy yield - low cost reduction of pollution - and improved lo
Photovoltaic Cell
8. Gas or liquid fuel (such as ethyl alcohol) made from plant material (biomass).
Biofuel
The advantages of hydropower include high net energy yield - low cost electricity - long life span - no carbon dioxide emissions during operation - flood control below dam - water for irrigation - and reservoir development. Disadvantages include high
Solar Cell
The advantages of improving energy efficiency include benefits to the environment - people - and the economy through prolonged fossil fuel supplies - reduced oil imports - very high net energy yield - low cost reduction of pollution - and improved lo
9. Systems of small-scale decentralized units that generate 1-10000 kilowatts of electricity. Examples include microturbines - fuel cells - wind turbines - and household solar-cell panels and solar-cell roofs.
We can improve energy efficiency by increasing fuel efficiency standards - large tax credits for purchasing energy efficient cars - houses - and appliances - encouraging independent energy production - and increasing research and development.
The advantages of hydrogen gas include the fact that it can be produced from water - the low environmental impact - no carbon dioxide emission - competitive price - ease of storage - safety - and high efficiency. Disadvantages include energy needed t
Micropower Systems
Hydroelectric Power Plant
10. Structure in which the energy of falling or flowing water spins a turbine generator to produce electricity.
Hydroelectric Power Plant
Combined Heat and Power System
The advantages of biomass include large potential supplies - moderate costs - no net carbon increase - and use of agricultural - timber - and urban wastes. Disadvantages include nonrenewable resource if not harvested sustainably - moderate to high en
Photovoltaic Cell
11. What are the advantages of biomass?
The advantages of biomass include large potential supplies - moderate costs - no net carbon increase - and use of agricultural - timber - and urban wastes. Disadvantages include nonrenewable resource if not harvested sustainably - moderate to high en
Resource Productivity
Solar Cell
PV Cell
12. Cluster of wind turbines in a windy area on land or at sea - built to capture wind energy and convert it into electrical energy.
Wind Farm
The advantages of using smaller - decentralized micropower sources include size - fast production and installation - high energy efficiency - low or no CO2 emissions - low air pollution - easy repair - reliable - increased national security - and eas
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
The advantages of biomass include large potential supplies - moderate costs - no net carbon increase - and use of agricultural - timber - and urban wastes. Disadvantages include nonrenewable resource if not harvested sustainably - moderate to high en
13. What are the advantages of improving energy efficiency?
The advantages of improving energy efficiency include benefits to the environment - people - and the economy through prolonged fossil fuel supplies - reduced oil imports - very high net energy yield - low cost reduction of pollution - and improved lo
Hydropower
Geothermal Energy
Resource Productivity
14. Electrical energy produced by falling or flowing water. See hydroelectric power plant.
Photovoltaic Cell
The advantages of using smaller - decentralized micropower sources include size - fast production and installation - high energy efficiency - low or no CO2 emissions - low air pollution - easy repair - reliable - increased national security - and eas
Hydropower
Solar Collector
15. House that is heavily insulated and extremely airtight. Typically - active or passive solar collectors are used to heat water - and an air-to-air heat exchanger prevents buildup of excessive moisture and indoor air pollutants.
Solar Energy
Energy Efficiency
The advantages of hydropower include high net energy yield - low cost electricity - long life span - no carbon dioxide emissions during operation - flood control below dam - water for irrigation - and reservoir development. Disadvantages include high
Superinsulated House
16. How could we improve energy efficiency?
CHP System
We can improve energy efficiency by increasing fuel efficiency standards - large tax credits for purchasing energy efficient cars - houses - and appliances - encouraging independent energy production - and increasing research and development.
The advantages of using smaller - decentralized micropower sources include size - fast production and installation - high energy efficiency - low or no CO2 emissions - low air pollution - easy repair - reliable - increased national security - and eas
Hydropower
17. Energy derived from the sun in the form of solar radiation.
Solar Energy
We can improve energy efficiency by increasing fuel efficiency standards - large tax credits for purchasing energy efficient cars - houses - and appliances - encouraging independent energy production - and increasing research and development.
The advantages of biomass include large potential supplies - moderate costs - no net carbon increase - and use of agricultural - timber - and urban wastes. Disadvantages include nonrenewable resource if not harvested sustainably - moderate to high en
Resource Productivity
18. Also known as Material efficiency; Total amount of material needed to produce each unit of goods or services. Also called resource productivity. Compare energy efficiency.
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
Geothermal Energy
Resource Productivity
Hydropower
19. System that uses solar collectors to capture energy from the sun and store it as heat for space heating and water heating. Liquid or air pumped through the collectors transfers the captured heat to a storage system such as an insulated water tank or
Solar Energy
Energy Efficiency
Active Solar Heating System
Superinsulated House
20. Also known as Combined Heat and Power System; In such a system - two useful forms of energy (such as steam and electricity) are produced from the same fuel source.
Combined Heat and Power System
Biofuel
The advantages of wind power include high net energy yield and efficiency - low cost and environmental impact - no carbon dioxide emissions - and quick construction. Disadvantages include need for winds and backup systems - high land use - visual and
CHP System
21. Also known as Photovoltaic Cell; Device that converts radiant (solar) energy directly into electrical energy. Also called a solar cell.
Micropower Systems
CHP System
PV Cell
Solar Collector
22. What are the advantages of wind power?
The advantages of wind power include high net energy yield and efficiency - low cost and environmental impact - no carbon dioxide emissions - and quick construction. Disadvantages include need for winds and backup systems - high land use - visual and
Photovoltaic Cell
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
Hydroelectric Power Plant
23. Total amount of material needed to produce each unit of goods or services. Also called resource productivity. Compare energy efficiency.
The advantages of improving energy efficiency include benefits to the environment - people - and the economy through prolonged fossil fuel supplies - reduced oil imports - very high net energy yield - low cost reduction of pollution - and improved lo
Material Efficiency
Resource Productivity
Solar Cell
24. What are the advantages of using smaller - decentralized micropower sources?
We can improve energy efficiency by increasing fuel efficiency standards - large tax credits for purchasing energy efficient cars - houses - and appliances - encouraging independent energy production - and increasing research and development.
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
Superinsulated House
The advantages of using smaller - decentralized micropower sources include size - fast production and installation - high energy efficiency - low or no CO2 emissions - low air pollution - easy repair - reliable - increased national security - and eas
25. System that - without the use of mechanical devices - captures sunlight directly within a structure and converts it into low-temperature heat for space heating or for heating water for domestic use. Compare active solar heating system.
Hydropower
Passive Solar Heating System
Photovoltaic Cell
The advantages of using smaller - decentralized micropower sources include size - fast production and installation - high energy efficiency - low or no CO2 emissions - low air pollution - easy repair - reliable - increased national security - and eas
26. Wing Power.
Superinsulated House
Combined Heat and Power System
Wind Energy
PV Cell
27. In such a system - two useful forms of energy (such as steam and electricity) are produced from the same fuel source.
Active Solar Heating System
Cogeneration
Material Efficiency
Combined Heat and Power System
28. Percentage of the total energy input that does useful work and is not converted into low-quality - usually useless heat in an energy conversion system or process. See energy quality - net energy. Compare material efficiency.
Passive Solar Heating System
Energy Efficiency
Solar Collector
Hydroelectric Power Plant
29. What are the advantages of solar energy?
The advantages of solar energy include reduction of air pollution - reduction of dependence on oil - and low land use. Disadvantages include production of photocells results in release of toxic chemicals - life of systems is short - need backup syste
Wind Farm
Micropower Systems
The advantages of hydropower include high net energy yield - low cost electricity - long life span - no carbon dioxide emissions during operation - flood control below dam - water for irrigation - and reservoir development. Disadvantages include high
30. Heat transferred from the earth's underground concentrations of dry steam (steam with no water droplets) - wet steam (a mixture of steam and water droplets) - or hot water trapped in fractured or porous rock.
Solar Energy
Active Solar Heating System
Geothermal Energy
PV Cell
31. Also known as Photovoltaic Cell; Device that converts radiant (solar) energy directly into electrical energy. Also called a solar cell.
PV Cell
Geothermal Energy
Solar Cell
The advantages of using smaller - decentralized micropower sources include size - fast production and installation - high energy efficiency - low or no CO2 emissions - low air pollution - easy repair - reliable - increased national security - and eas