Wind Energy

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1

……... is the tangential velocity of the blade due to the rotation of the blade.

Wind velocity
Incident wind velocity
Blade linear velocity
Relative velocity
2

The approximate diameter of wind turbine blades is……..

320 feet
220 feet
80 feet
500 feet
3

.................. measures the speed of the wind.

Manometer
Anemometer
Pyranometer
Wind vane
4

............created the first windmill.

Iran
Egypt
Denmark
China
5

A Nacelle in a wind power contains ...........

Gearbox
Brakes
Generator
All of the above
6

The distributed wind generation is not ............

A 50-kilowatt turbine at an office
A large, 100-megawatt wind farm
A 1.5-megawatt turbine at a school
A small, 5-kilowatt turbine at a rural home
7

What is the rate of change of wind speed with height called?

Wind shear
Wind rose
Wind solidity
None of the above
8

What type of cross-section does turbine blades have to extract energy from wind?

Elliptical
Aerofoil
Rectangular
All of the above
9

What is the term to describe the atmosphere with uniform wind speed?

Plain
Surface
Free
Shear
10

What is the range of speed in a wind turbine that generates electricity?

100 – 125 mph
450 – 650 mph
250 – 450 mph
30-35 mph