| 7966638591 | Which of the following is not a non renewable energy source? (Options: oil, coal, natural gas, wind, nuclear fuels) | Wind | | 0 |
| 7966638592 | The fact that global transfer of energy from fuels to electricity is about 35 percent efficient is mostly a consequence of | The second law of thermodynamics | | 1 |
| 7966638593 | Which of the following is the most fuel-efficient mode of transportation in terms of joules per passenger-kilometer? (Options: train, bus, airplane, care with one passenger, car with 3 passengers) | Train | | 2 |
| 7966638594 | Which of the following is not associated with the surface extraction of coal? | Land subsidence and collapse | | 3 |
| 7966638595 | Which of the following statements regarding petroleum is correct? (Options: it is formed from the decay of woody plants. It contains natural gas as well as oil. It migrates through pore spaces in rocks.) | It contains natural gas as well as oil. It migrates through pore spaces in rocks. | | 4 |
| 7966638596 | Nuclear power plants produce electricity using energy from the radioactive decay of | uranium-235 | | 5 |
| 7966638597 | Currently, the most high-level radioactive waste from nuclear reactors in the United States is | Stored at the power plant that produced it. | | 6 |
| 7966638598 | A radioactive isotope has a half-life of 40 years and a radioactive level of 4 curries. How many years will it take for the radioactivity to become 0.25 curies? | 160 | | 7 |
| 7966638599 | Which of the following energy sources is responsible for the largest fraction of electricity generation in the United States | Coal | | 8 |
| 7966638600 | In 1969, M. King Hubert published a graph known as the Hubert curve. This graph shows | The point at which world oil production will reach a maximum and the point at which we will run out of oil. | | 9 |
| 7966638601 | What are the most commonly used sources for generating electricity? | Coal, oil, natural gas, and nuclear fuels | | 10 |
| 7966638602 | The electrical grid | A network of interconnected transmission lines that ties power plants together and links them with end users of electricity. | | 11 |
| 7966638603 | 1 becquerel (Bq)= | The decay of one atom per second | | 12 |
| 7966638604 | 1 curie= | 37 billion decays per second. Unit measure for radiation. | | 13 |
| 7966638605 | 50 curies= | 1 half life | | 14 |
| 7966638606 | nondepletable energy sources | Solar, wind, geothermal, hydroelectric, and tidal energy | | 15 |
| 7966638607 | Nondepletable resource definition | No matter how much energy we capture, there will always be more. | | 16 |
| 7966638608 | Only resources available before fossil fuels | Wood, plants, animal manure, fish, animal oils | | 17 |
| 7966638609 | Biomass us currently the source of _____% of the energy. Insured in subSaharan Africa | 86 | | 18 |
| 7966638610 | In the United States renewable energy is only about ____ percent of the energy used. | 7 | | 19 |
| 7966638611 | Biomass is a renewable resource only if | Used sustainably | | 20 |
| 7966638612 | Energy conservation | Finding ways to use less energy | | 21 |
| 7966638613 | How government implements energy conservation | Improve availability of public transportation, or taxing electricity, coal and natural gas. Offer rebates or tax credits for retrofitting a home or business to operate in less electricity. Tiered rate system | | 22 |
| 7966638614 | tiered rate system | charging less per kWh as a reward for using lower amounts of electricity. Customers pay a low rate for the first increment of electricity they use and pay higher rates as their use goes up. | | 23 |
| 7966638615 | Renewable energy accounts for approximately ___% of the energy used worldwide | 13 | | 24 |
| 7966638616 | Order of renewable energy uses, high lest percent to lowest percent | Biomass 53%, hydroelectric 34%, wind 7%, geothermal 5%, solar 1% | | 25 |
| 7966638617 | compact fluorescent light bulbs use ____ as much energy to provide the same amount as incandescent bulbs. | One-fourth | | 26 |
| 7966638618 | LED light bulbs use ____ as much energy to provide the same amount as incandescent bulbs. | one-sixth | | 27 |
| 7966638619 | Energy Star appliances | Products that meet the efficiency standards of the U.S Environmental Protection Agency's Energy Star program. | | 28 |
| 7966638620 | Using less energy in the home | Weatherize, turn the Romo star down in winter and up in summer, reduce use of hot water, replace incandescent bulbs with compact fluorescents or LEDs. | | 29 |
| 7966638621 | Peak demand | The greatest quantity of energy used at any one time | | 30 |
| 7966638622 | To meet peak demand for electricity, electric companies often keep backup sources of energy available- primarily____ | Natural-gas fired generators | | 31 |
| 7966638623 | How to reduce peak demand | Set up a variable price structure under which customers pay less to use electricity when demand is lowest (middle of the night or weekends). | | 32 |
| 7966638624 | The second law of thermodynamics tells | Whenever energy is converted from one form into another, some energy is lost as unusable heat. | | 33 |
| 7966638625 | In a typical thermal fossil fuel or nuclear power plant, only about ____ of the energy consumed goes to its intended purpose. The rest is lost during energy conversions. | 1/3 | | 34 |
| 7966638626 | Examples of sustainable design house | Skylight, high-efficiency window, adequate insulation and sealing of cracks, insulated foundation walls and basement floors, high-efficiency heating and cooling systems | | 35 |
| 7966638627 | passive solar design | A technique that takes advantage of solar radiation to maintain a comfortable temperature in the building. | | 36 |
| 7966638628 | Nuclear energy generates 70 percent of electricity in.. | France | | 37 |
| 7966638629 | Nuclear energy is widely used in | Lithuania, Germany, Spain, the United Kingdom, Japan, China, and South Korea | | 38 |
| 7973258494 | Where tidal energy comes from | Gravitational pull of moon | | 39 |
| 7973258495 | Where nuclear fission/fusion, geothermal energy comes from | Nuclear reactions (natural and engineered) | | 40 |
| 7973258496 | Where solar energy comes from | Direct use of sun's solar energy | | 41 |
| 7973258497 | Where wind/hydroelectric energy comes from | Differential heating of atmosphere | | 42 |
| 7973258498 | Where ground source heat pumps get energy | Heating of ground (from sun) | | 43 |
| 7973258499 | Where wood/charcoal/manure/liquid biofuels get energy | Photosynthesis by modern plants and algae | | 44 |
| 7973258500 | Biomass energy | Encompass a large class of fuel types that include wood and charcoal, animal products and manure, plant remains, and municipal solid waste (MSW) as well as liquid fuels such as ethanol and biodiesel. | | 45 |
| 7973258501 | Because these materials are inexpensive and abundant, they account for more than _____ percent of world energy consumption | 10 | | 46 |
| 7973258502 | Biomass can also be processed or refined into liquid fuels such as ethanol and biodiesel, known collectively as _____ | Biofuels | | 47 |
| 7973258503 | Biomass-including ethanol and biodiesel- accounts for more than _____ of the renewable energy and approximately ____ percent of all energy consumed in the United States today. | One-half, 3.5 | | 48 |
| 7973258504 | Modern carbon | We call the carbon in biomass _____ | | 49 |
| 7973258505 | Fossil carbon | Carbon in fossil fuels | | 50 |
| 7973258506 | An activity that does not change atmospheric CO2 concentrations is referred to as _____ | carbon neutral | | 51 |
| 7973258507 | Net removal | Removing more timber than is replaced by growth | | 52 |
| 7973258508 | Tree removal as the potential to result in | Soil erosion, increased water temperatures in nearby rivers and streams, and fragmentation of forest habitats when logging roads divide them. | | 53 |
| 7973258509 | The United States is currently the leader of _____ production | Ethanol | | 54 |
| 7973258510 | Burning manure cons | Releases pollutants that can cause a variety of respiratory illnesses, from emphysema to cancer | | 55 |
| 7973258511 | The world health organization estimates that indoor air pollution (from burning manure) is responsibly for approximately ________ million deaths annually | 1.5 | | 56 |
| 7973258512 | ______ is an alcohol, the same one found in alcoholic beverages. | Ethanol | | 57 |
| 7973258513 | More than _____ percent of ethanol produced in the United States comes from corn and corn by-products | 90 | | 58 |
| 7973258514 | Biodiesel | A substitute for regular petroleum. It is usually produced by extracting oil from algae and plants such as soybeans and palm. | | 59 |
| 7973258515 | Gasohol | Resulted from ethanol mixed with ethanol. The most common ratio is one part of ethanol to 9 parts of gasoline. The result is that a fuel is 10% ethanol. | | 60 |
| 7973258516 | In certain parts of the midwestern United States, especially corn growing States, a fuel called ______(85% ethanol, 15% gasoline) is available. | E-85 | | 61 |
| 7973258517 | Flex-fuel vehicles can run on either gasoline or ____ | E-85 | | 62 |
| 7973258518 | A 90 percent gasoline/10 percent ethanol mix reduces gas mileage by _____ percent compared with one hundred percent gasoline fuel | 2-3% | | 63 |
| 7973258519 | Alternatives to corn | Switchgrass, wood chips | | 64 |
| 7973258520 | Switchgrass | A perennial crop that farmers can harvest without replanting, minimizing soil disturbance and erosion. Does not require as much fossil fuel to produce. However, is mostly compromised of cellulose which must be broken down into sugars before it can be used in ethanol production. | | 65 |
| 7973258521 | Biodiesel is typically diluted to "___", a mixture of 80% petroleum diesel and 20% biodiesel. | B-20 | | 66 |
| 7973258522 | SVO | straight vegetable oil | | 67 |
| 7973258523 | Run-of the river system | Water is retained behind a low dam and runs through a channel before returning to the river. Does not store water in a reservoir. Advantages: relatively little flooding occurs upstream, and seasonal changes in river flow are not disrupted. However, they are generally small, and because thy rely on natural water flows, electricity generation is intermittent. Heavy spring runoff cannot be stored, and the system cannot generate any electricity in hot, dry periods when the water is low. | | 68 |
| 7973258524 | Water-impoundment system | Storing water in a reservoir behind a dam. The mot common method of hydroelectricity because it usually allows for electricity generation on demand. By controlling opening and closing of the gates, the dam operators determine the flow rate and therefore the amount of electricity generated. | | 69 |
| 7973258525 | Grand Coulee Dam in Washington State | Largest hydroelectric water impoundment in U.S., which generates 6,800 MW at peak capacity | | 70 |
| 7973258526 | Three Gorges Dam on the Yangtze River in China | Largest dam in the world, with a capacity of 18,000 MV and can generate 85 billion kWH per year | | 71 |
| 7973258527 | Tidal energy | Relies on movement of water from gravitational pull of the moon. | | 72 |
| 7973258528 | Where tidal power plants operate | France, Korea, Canada | | 73 |
| 7973258529 | The price of hydroelectricity in the United States ranges from ____ to _____ cents per kWh | 5 to 11 | | 74 |
| 7973258530 | Sandbars | Created during periods of low following periods of flooding. Some plant species, such as cottonwood trees, cannot reproduce in the absence of these sandbars. The life cycles of certain aquatic species such as salmon, certain trout species, and freshwater clams and mussels, also depend on seasonal variations in water flow. | | 75 |
| 7973258531 | Production of cement is responsible for approximately ____ percent of global anthropogenic CO2 emissions to the atmosphere | 5 | | 76 |
| 7973258532 | Siltation | Accumulation of sediments on the bottom of the reservoir that river carries. Reduces generating capacity | | 77 |
| 7973258533 | Active solar energy | Captures the energy of sunlight with the use of technologies. Small scale-solar water heating systems, photovoltaic solar cells, and large-scale solar therms, systems | | 78 |
| 7973258534 | photovoltaic solar cells | capture energy from the Sun as light, not heat, and convert it directly into electricity | | 79 |
| 7973258535 | Typically photovoltaic cells are ___ to ____ percent efficient | 12-20 | | 80 |
| 7973258536 | Solar water heating systems | Heating swimming pools is the most common application | | 81 |
| 7973258537 | Concentrating Solar Thermal Electricity Generation | The heat of the concentrated beam is used to evaporate water and produce steam that turns a turbine to produce electricity. CST systems are a large-scale application of solar energy to electricity generation. Use lenses or mirrors and tracking systems to focus the sunlight falling on a large area into a small beam. | | 82 |
| 7973258538 | Downside to CST generation | Large amount sod land required, inability to generate electricity at night | | 83 |
| 7973258539 | Geothermal energy | Heat that comes form the natural radioactive activity of elements deep within earth. | | 84 |
| 7973258540 | Largest geothermal energy producers | United States, China, and Iceland | | 85 |
| 7973258541 | ground source heat pump | takes advantage of the high thermal inertia of the ground to heat and cool residential and commercial buildings. | | 86 |
| 7973258542 | Largest wind energy generating capacities in the world | United States, Spain, China, India, Italy | | 87 |
| 7973258543 | U.S obtains less than ___% of its electricity from wind | 1% | | 88 |
| 7973258544 | Denmark obtains more than ___% of its electricity from wind | 21% | | 89 |
| 7973258545 | Wind turbine | Converts the kinetic energy of moving air into electricity | | 90 |
| 7973258546 | fuel cell | A device that converts chemical energy to electrical energy. Reactants are added continuously to the cell, so the cell produces electricity for as long as it is supplied with fuel. Electricity is generated by the reaction of hydrogen with oxygen, which forms water | | 91 |
| 7973258547 | Electrolysis | A current is applied to split it into hydrogen and oxygen | | 92 |
| 7973258548 | Smart grid | An efficient, self-regulating electricity distribution network that accepts any source of electricity and distributed it automatically to end users. | | 93 |
