What You Need To Know About Energy
What do you know about energy?
True or False: Burning coal in electric power plants is a major source of CO2 and other emissions. However, its use doesn't have negative consequences beyond the emissions caused by combustion.
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Sorry, that’s incorrect.
Mining coal disturbs the land and modifies the chemistry of rainwater runoff, which in turn affects stream and river water quality.
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Correct!
Mining coal disturbs the land and modifies the chemistry of rainwater runoff, which in turn affects stream and river water quality.
Which of the following is emitted by coal-fired power plants?
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Sorry, that’s incorrect.
All of the above are emitted from coal-fired power plants and can be harmful to our health and the environment.
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Sorry, that’s incorrect.
All of the above are emitted from coal-fired power plants and can be harmful to our health and the environment.
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Sorry, that’s incorrect.
All of the above are emitted from coal-fired power plants and can be harmful to our health and the environment.
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Sorry, that’s incorrect.
All of the above are emitted from coal-fired power plants and can be harmful to our health and the environment.
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Correct!
All of the above are emitted from coal-fired power plants and can be harmful to our health and the environment.
What is a major reason that the U.S. is exporting more oil in 2014 than in 2005?
- More miles driven in vehicles
- More horizontal drilling
- Less oil available on the world market
- Hydraulic fracturing of tight oil formations
- B and D
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Sorry, that’s incorrect.
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
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Correct!
New technologies for drilling have led to increases in supply of oil in the U.S. in the decade up to 2014.
Which of the following energy sources releases carbon dioxide when burned?
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Sorry, that’s incorrect.
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
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Sorry, that’s incorrect.
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
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Sorry, that’s incorrect.
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
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Correct!
Gasoline, diesel fuel, and natural gas all release CO2 when burned.
On average, which is most efficient in coverting heat into electic power?
- Coal boiler power plant
- Natural gas-fired turbine power plant
- Natural gas combined-cycle power plant
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Sorry, that’s incorrect.
On average, a typical coal-burning power plant in 2013 was about 33% efficient in converting heat energy into electrical power. A gas-fired plant was about 42% efficient. And in natural gas combined-cycle power plants—in which waste heat from a natural gas turbine is used to power a steam turbine—generation may be as much as 60% efficient.
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Sorry, that’s incorrect.
On average, a typical coal-burning power plant in 2013 was about 33% efficient in converting heat energy into electrical power. A gas-fired plant was about 42% efficient. And in natural gas combined-cycle power plants—in which waste heat from a natural gas turbine is used to power a steam turbine—generation may be as much as 60% efficient.
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Correct!
On average, a typical coal-burning power plant in 2013 was about 33% efficient in converting heat energy into electrical power. A gas-fired plant was about 42% efficient. And in natural gas combined-cycle power plants—in which waste heat from a natural gas turbine is used to power a steam turbine—generation may be as much as 60% efficient.
Refrigerators became 70% more efficient between 1972 and 2001, primarily due to regulation. What is a market response to increased efficiency of refrigerators?
- People use their refrigerator more hours in the day.
- People use their refrigerator fewer hours in the day.
- People keep more refrigerators in their house.
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Sorry, that’s incorrect.
Refrigerators are not likely to be used more or less hours in the day, but people are more likely to have more of them if they cost less to operate.
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Sorry, that’s incorrect.
Refrigerators are not likely to be used more or less hours in the day, but people are more likely to have more of them if they cost less to operate.
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Correct!
Refrigerators are not likely to be used more or less hours in the day, but people are more likely to have more of them if they cost less to operate.
Combustion of gasoline and diesel fuel emits which of the following?
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Sorry, that’s incorrect.
All of the above are emitted by vehicles running on gasoline and diesel fuel.
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Correct!
All of the above are emitted by vehicles running on gasoline and diesel fuel.
Nuclear power provided what percentage of the total U.S. energy supply in 2013?
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Sorry, that’s incorrect.
19% of our electricity was generated by nuclear fuel in 2013.
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Correct!
19% of our electricity was generated by nuclear fuel in 2013.
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Sorry, that’s incorrect.
19% of our electricity was generated by nuclear fuel in 2013.
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Sorry, that’s incorrect.
19% of our electricity was generated by nuclear fuel in 2013.
Which of the following sources do experts expect will provide us with the “silver bullet” solution to our energy needs?
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Sorry, that’s incorrect.
There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.
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Sorry, that’s incorrect.
There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.
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Sorry, that’s incorrect.
There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.
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Correct!
There is no silver bullet. Tomorrow’s energy, like today’s, will come from a variety of sources.
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