What is the main source for the formation of wind Mcq?
4. What is the main source for the formation of wind? Explanation: Wind is free and renewable form of energy, which throughout history has been used to grind grain, power ships, and pump water. Wind is created when the sun unevenly heat the earth surface.
Which is most common source of energy from which electricity is produced?
The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources. Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy.
Which type of windmill has better performance?
7. Which type of windmill has better performance? Explanation: The horizontal axis mills generally have netter performance. They have been used for various applications including electric power generation, and pumping water.
Are vertical axis wind turbines more efficient?
4. Less Efficiency. Vertical axis wind turbines are known to have less efficiency compared to horizontal axis wind turbines. On the other hand, a Savonius vertical axis wind turbine has an average efficiency of 10 to 17 %, while the Darrieus vertical axis wind turbine reaches 30 to 40 %.
How can wind turbines be improved?
Methods To Improve Wind Turbine Performance
- Wind prediction.
- Variable speed transmission.
- Constant speed generator.
- Sophisticated programming of loads and RPM.
What is the value of Betz limit?
The maximum theoretical value of kinetic energy extractable from the wind was demonstrated in 1919 by Albert Betz and it is known as Betz’s Law. According to it, the maximum coefficient of performance (Cp) in kinetic-energy extraction is 59.3%, which is also called the Betz Limit.
Where is the largest wind farm located in India?
Jaisalmer wind park
Where is largest wind farm?
The San Gorgonio Pass wind farm in California, United States. The Gansu Wind Farm in China is the largest wind farm in the world, with a target capacity of 20,000 MW by 2020.
Which state is suitable for wind farm?
Tamil Nadu
Which state has most wind power?
Top 10 states generating the highest percentage of electricity from wind
| State | % from wind |
|---|---|
| Iowa | 56.2 |
| Kansas | 45.2 |
| Oklahoma | 39.4 |
| South Dakota | 39.0 |
Which country is known as land of windmills?
The Netherlands
How many wind turbines are in the World 2020?
341,000 wind turbines
Can I make money from a wind turbine?
Wind turbines can make between $3000–$10,000 or more per year depending on the size and kilowatt capacity of the turbine. Farmers on wind farms can maintain their own electricity production and guarantee a lower price for at least 20 years.