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Wind energy quiz

Transcript

Quiz

WIND ENERGY

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Question 1/5

A. Turbine

B. Blade

C. Engine

D. Motor

Which device is used for to turn wind energy into mechanical energy

Rightanswer!

Wind power or wind energy is the use of wind to provide mechanical power through wind turbines to turn electric generators for electrical power.

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Question 2/5

The tallest existing wind turbine was built in....

A. Germany

B. India

C. Italy

D. China

rightanswer

The world's tallest existing wind turbine is in the German town of Gaildorf, near Stuttgart, with a total height of 246.5m.

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Question 3/5

A device which is used as device for showing direction wind as well used as a decorative purpose?

A. Weather socks

B. Anenometers

C. Weather vane

D. Pin wheels

Rightanswer!

A weather vane (weathervane), wind vane, or weathercock is an instrument used for showing the direction of the wind. It is typically used as an architectural ornament to the highest point of a building.

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Question 4/5

Who invented the first electricity-generating wind turbine?

A. George J.M. Darrieus

B. James Blyth

C. Benjamin Franklin

D. Charles F. Brush

rightanswer

The very first electricity-generating wind turbine was built in 1887 in Cleveland, Ohio by Charles F. Brush. Brush was an inventor and electrician. Historical records say Brush built the impressive 85-foot-tall windmill in his very own backyard.

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Question 5/5

How many blades does a modern wind turbine have?

A. There is no standard number

B. 1

C. 2

D. 3

rightanswer!

Most modern wind turbines used for generating electricity have three blades, although some have two or even one. Three blades have the particular advantage that the polar moment of inertia with respect to yawing is constant, and is independent of the azimuth position of the rotor.

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Answers

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Which device is used for to turn wind energy into mechanical energy? Turbine

The tallest existing wind turbine was built inGermany

A device which is used as device for showing direction wind as well used as a decorative purpose?Weather vane

Who invented the first electricity-generating wind turbine?American inventor Charles F. Brush

How many blades does a modern wind turbine have?usually three but sometimes one or two

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