What You Need To Know About Energy
What do you know about energy?
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 has been growing more, energy used by lighting and appliances or energy used for heating and cooling?
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Correct!
For decades, more than half of all residential energy use went to space heating and cooling; in 1993, it accounted for nearly 60%. But EIA data show that by 2009, that share had dropped to 48%. And in the period 1993 to 2009, energy for appliances, electronics, and lighting rose from 24% to 35%, owing to the proliferation of appliances, as well as trends toward larger TVs and other devices.
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Sorry, that’s incorrect.
For decades, more than half of all residential energy use went to space heating and cooling; in 1993, it accounted for nearly 60%. But EIA data show that by 2009, that share had dropped to 48%. And in the period 1993 to 2009, energy for appliances, electronics, and lighting rose from 24% to 35%, owing to the proliferation of appliances, as well as trends toward larger TVs and other devices.
What percentage of commercial building energy is used by schools?
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Sorry, that’s incorrect.
School buildings represent 13% of commercial buildings energy use, or about 2.5% of total U.S. energy use (13% × 19%).
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Sorry, that’s incorrect.
School buildings represent 13% of commercial buildings energy use, or about 2.5% of total U.S. energy use (13% × 19%).
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Correct!
School buildings represent 13% of commercial buildings energy use, or about 2.5% of total U.S. energy use (13% × 19%).
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Sorry, that’s incorrect.
School buildings represent 13% of commercial buildings energy use, or about 2.5% of total U.S. energy use (13% × 19%).
True or false? Fuel cells store energy.
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Sorry, that’s incorrect.
Fuel cells are an efficient way to convert hydrogen to electricity, but the energy is stored in the hydrogen.
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Correct!
Fuel cells are an efficient way to convert hydrogen to electricity, but the energy is stored in the hydrogen.
According to the Corporate Average Fuel Economy (CAFE) standards, what is the average miles per gallon (mpg) required for new cars, SUVs, and light trucks (combined) by 2025?
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Sorry, that’s incorrect.
The most recent federal efficiency standards, finalized by the U.S. National Highway Traffic Safety Administration (NHTSA) and the Environmental Protection Agency (EPA) in 2012, are projected to increase fuel economy to the equivalent of 54.5 mpg for cars and light-duty trucks by model year 2025, while also reducing CO2 emissions.
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Sorry, that’s incorrect.
The most recent federal efficiency standards, finalized by the U.S. National Highway Traffic Safety Administration (NHTSA) and the Environmental Protection Agency (EPA) in 2012, are projected to increase fuel economy to the equivalent of 54.5 mpg for cars and light-duty trucks by model year 2025, while also reducing CO2 emissions.
-
Sorry, that’s incorrect.
The most recent federal efficiency standards, finalized by the U.S. National Highway Traffic Safety Administration (NHTSA) and the Environmental Protection Agency (EPA) in 2012, are projected to increase fuel economy to the equivalent of 54.5 mpg for cars and light-duty trucks by model year 2025, while also reducing CO2 emissions.
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Correct!
The most recent federal efficiency standards, finalized by the U.S. National Highway Traffic Safety Administration (NHTSA) and the Environmental Protection Agency (EPA) in 2012, are projected to increase fuel economy to the equivalent of 54.5 mpg for cars and light-duty trucks by model year 2025, while also reducing CO2 emissions.
-
Sorry, that’s incorrect.
The most recent federal efficiency standards, finalized by the U.S. National Highway Traffic Safety Administration (NHTSA) and the Environmental Protection Agency (EPA) in 2012, are projected to increase fuel economy to the equivalent of 54.5 mpg for cars and light-duty trucks by model year 2025, while also reducing CO2 emissions.
What type of transportation uses the most total energy?
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Correct!
By far the largest share of energy in transportation is consumed by cars, light trucks, and motorcycles—about 58% in 2012, followed by other trucks (21%), aircraft (9%), boats and ships (3%), and trains and buses (3%). Pipelines account for 3% and military uses for 2%.
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Sorry, that’s incorrect.
By far the largest share of energy in transportation is consumed by cars, light trucks, and motorcycles—about 58% in 2012, followed by other trucks (21%), aircraft (9%), boats and ships (3%), and trains and buses (3%). Pipelines account for 3% and military uses for 2%.
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Sorry, that’s incorrect.
By far the largest share of energy in transportation is consumed by cars, light trucks, and motorcycles—about 58% in 2012, followed by other trucks (21%), aircraft (9%), boats and ships (3%), and trains and buses (3%). Pipelines account for 3% and military uses for 2%.
-
Sorry, that’s incorrect.
By far the largest share of energy in transportation is consumed by cars, light trucks, and motorcycles—about 58% in 2012, followed by other trucks (21%), aircraft (9%), boats and ships (3%), and trains and buses (3%). Pipelines account for 3% and military uses for 2%.
-
Sorry, that’s incorrect.
By far the largest share of energy in transportation is consumed by cars, light trucks, and motorcycles—about 58% in 2012, followed by other trucks (21%), aircraft (9%), boats and ships (3%), and trains and buses (3%). Pipelines account for 3% and military uses for 2%.
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.
What are ways that electricity system operators match power needs to generation on a day-to-day basis?
- Turning on or off adjustable, load-following generators
- Turning on or off short-term "peaker" plants
- Initiating demand-response actions, such as adjusting thermostats for customers who have agreed to it.
- Initiating energy storage, such as pumped hydro or battery storage.
- All of the above
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Sorry, that’s incorrect.
Load-following and peaker plants, demand-response and energy storage are all ways that grid operators can adjust generation to meet demand.
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Sorry, that’s incorrect.
Load-following and peaker plants, demand-response and energy storage are all ways that grid operators can adjust generation to meet demand.
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Sorry, that’s incorrect.
Load-following and peaker plants, demand-response and energy storage are all ways that grid operators can adjust generation to meet demand.
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Sorry, that’s incorrect.
Load-following and peaker plants, demand-response and energy storage are all ways that grid operators can adjust generation to meet demand.
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Correct!
Load-following and peaker plants, demand-response and energy storage are all ways that grid operators can adjust generation to meet demand.
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.
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