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Exercise "Renewable energies", created by baboune16 (a free exercise to learn English):
Results of the 999 people who have taken this test:
Average mark: 61.5 / 100 Share


Latest member with a 100/100 (perfect mark): bleuclair64 / FRANCE, on Friday 17 July - 06:43:
"Thank you"


They got a perfect mark


Stats (999 candidates)
Question 1 passed: 69.1 %
* is the use of air flow through wind turbines to provide mechanical power to turn electric generators.

Question 2 passed: 47.3 %
The electricity producers using * connect their installations to the network in order to sell what they produce.

Question 3 passed: 67.2 %
In addition to construction for the purpose of producing hydroelectric power,* are created to control river flow.

Question 4 passed: 62.4 %
Electricity generated by domestic *is mostly used for powering household appliances and equipement.

Question 5 passed: 53.7 %
In 1966, France opened the Rance *. It was the first one in the world.

Question 6 passed: 53.2 %
The * principle is being used to make inexpensive solar cookers and for solar water pasteurisation.

Question 7 passed: 67.8 %
Underground reservoirs of steam and hot water can be tapped to generate eletricity or to heat buildings with this *.

Question 8 passed: 60 %
A* is based on the conversion of sunlight into electricity using PV or CSP (concentrated solar power).

Question 9 passed: 64 %
Ocean waves contain very tremendous energy. * devices extract energy from the surface motion of waves.

Question 10 passed: 56.7 %
On combustion, the carbon from * is released into the atmosphere as carbon dioxide.


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