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14-15 Spring Semester Exam-Part 1

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1.
1 point
Two thousand pounds (one ton) of trash is equivalent to 500 pounds of coal in terms of heat energy.
2.
1 point
Most of the geothermal activity occurs here--around the Pacific Ocean.
3.
1 point
Until the 1800’s wood gave Americans 90 percent of their energy. Today all biomass provides about 4.61% of the total energy we consume.
4.
1 point
For wind turbines to be most efficient, the winds must blow at least 13 miles per hour.
5.
1 point
The capability of a power plant to produce electricity - how often would the turbine run - is ________.
6.
1 point
Sunlight gives plants the energy they need to convert water and carbon dioxide into oxygen and sugars.
7.
1 point
Wood, crops, seaweed, animal waste, and any other organic matter that can be used as an energy source.
8.
1 point
Methane gas is produced as waste decays - but it is not a good energy source.
9.
1 point
Biomass energy is fairly new - we have just started using it in the last 10 years.
10.
1 point
It costs more to produce ethanol than gasoline.
11.
1 point
Wood accounts for about 46% of biomass energy.
12.
1 point
The Greek word for earth is “geo” and the Greek word for heat is “therme”.
13.
1 point
A machine with blades, tower and gearbox that converts wind into electricity is a(n) ________.
14.
1 point
Geothermal energy produces steam that drives turbine.
15.
1 point
Wind energy provides about 30 percent of the nation’s electricity, but it’s expected to triple in the next few years.
16.
1 point
Biomass energy sources give human beings the energy they need by providing carbohydrates.
17.
1 point
An alcohol fuel made by fermenting the sugars found in plants.
18.
1 point
Utility companies are required to purchase electricity from independent power producers at rates that are fair.
19.
1 point
The power that an electric utility company must deliver all day long is called ____________.
20.
1 point
E85 is gasoline with 85% ethanol and 15% gasoline.
21.
1 point
Biomass is a renewable energy source, because we can always grow trees and crops.
22.
1 point
The temperature of the earth a few feet underground remains constant year round - about 52 degrees Fahrenheit in moderate climates.
23.
1 point
Hot springs, volcanoes, and geysers are all examples of geothermal.
24.
1 point
Geothermal energy is used to heat buildings only.
25.
1 point
Each wind machine requires about 1 square mile of land.
26.
1 point
Wind plants are far more expensive to construct than a conventional energy plant.
27.
1 point
If turbines are too close together they block each other’s wind.
28.
1 point
The process where the slabs of the continents and ocean floor drift apart and push against each other - about 1 inch per year.
29.
1 point
Biomass contains little sulfur and nitrogen, so it does not produce the pollutants that can cause acid rain.
30.
1 point
A device for monitoring the direction of the wind is a(n) ________.
31.
1 point
________ refers to how much electricity we can get from the wind
32.
1 point
Geothermal energy produces less than 1% of the electricity consumed in the nation today.
33.
1 point
It is better to burn landfill methane and change it into carbon dioxide
through combustion than to release it into the atmosphere.
34.
1 point
Wind speed or how many mph the wind is blowing is __________.
35.
1 point
Geothermal energy is non-renewable because we are running out of heat from within the earth.
36.
1 point
Many wind farms are owned by private business people who sell the electricity to electric utility companies.
37.
1 point
Geothermal power plants use _______________ to clean the air of hydrogen sulfide and other gases.
38.
1 point
Biomass gets its energy from the sun through the process called photosynthesis.
39.
1 point
Landfill gases that are used to provide energy.
40.
1 point
Sugars that supply plants and animals that eat plants with energy.
41.
1 point
Wind machines convert 25-45 percent of the wind’s energy into electricity.
A coal-fired power plant convert 35 percent of the energy from coal into electricity.
42.
1 point
The earth’s interior is made up of the ____________.
43.
1 point
Plants remove carbon dioxide from the atmosphere when they grow.
44.
1 point
Wind is caused by the sun - the uneven heating of different surfaces on the earth.
45.
1 point
A device use for measuring wind speed is called a(n) ________.
46.
1 point
Power plants that burn garbage for energy.
47.
1 point
Clusters of wind turbines are a(n) _______.
48.
1 point
E10 is gasoline with 10% gasoline and 90% ethanol.
49.
1 point
Because we have the sun, wind is a renewable energy source.
50.
1 point
Red hot temperatures are continuously produced inside the earth by slow decay of radioactive particles found in rocks.
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