Wind Turbine — Questions and answers
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What kind of new power solution did Charles F. Brush envision for electricity?
Choices
- A. A system that only used fossil fuels.
- B. A self-sustaining system using wind to generate electricity. ✓
- C. A way to make electricity even more centralized.
- D. A method to power homes with manual labor.
Answer: B. A self-sustaining system using wind to generate electricity.
From page 1
Why did Charles Brush want to create a new energy system for his own estate?
Choices
- A. He wanted to buy all his electricity from the city.
- B. He wanted to prove that gas lamps were better than electric ones.
- C. He wanted energy independence and a self-sufficient system for his property. ✓
- D. He only wanted to power a single light bulb.
Answer: C. He wanted energy independence and a self-sufficient system for his property.
From page 4
What was one of the big challenges Charles Brush faced when building his wind turbine?
Choices
- A. Making the tower very short and fragile.
- B. Designing blades that were too small to catch much wind.
- C. Creating a large enough rotor to capture a lot of wind energy. ✓
- D. Finding a way to manually control it during a storm.
Answer: C. Creating a large enough rotor to capture a lot of wind energy.
From page 5
What part of Brush's turbine helped protect it from very strong winds?
Choices
- A. The 144 cedar blades.
- B. The large dynamo (generator).
- C. An automatic governing system with a tail vane. ✓
- D. The main shaft connecting to the gearbox.
Answer: C. An automatic governing system with a tail vane.
From page 6
How long did Charles Brush's wind turbine provide power to his mansion and laboratory?
Choices
- A. Only for a few months.
- B. For about five years.
- C. For twenty years (two decades). ✓
- D. For more than fifty years.
Answer: C. For twenty years (two decades).
From page 7
How long can the advanced blades of modern wind turbines often be?
Choices
- A. Shorter than a car.
- B. About 20 meters long.
- C. Often longer than 80 meters. ✓
- D. Exactly 10 meters long.
Answer: C. Often longer than 80 meters.
From page 9
What is one important way wind turbines have positively impacted the world?
Choices
- A. They make more carbon emissions.
- B. They only create challenges for land use.
- C. They reduce carbon emissions and help create new industries. ✓
- D. They are only used for decorative purposes now.
Answer: C. They reduce carbon emissions and help create new industries.
From page 10