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WorksheetsWind the Miller
Total questions: 24
Worksheet time: 12mins
What are the five basic parts of a wind turbine?
Hub, Rotor, low speed shaft, high speed shaft, and the cooling unit
Low speed shaft, and high speed shaft
CPU, RAM, Hard drive, Video card, and Motherboard
Cables
How does a wind turbine generate electricity?
The wind pushes the blades which then makes it all fall over
The wind does nothing and nothing happens
The wind turns the rotor of the wind turbine, which makes electricity
The worker physically pushes the blades to make electricity
What are the parts which make up the tower?
Cables, Cross braces, Mid-tower junction box, Utility box, and the Ladder
Blade
Nacelle
Rotor
How do they help the tower work?
The cables helps the tower by delivering energy generated by wind turbine.
The Mid-tower junction box helps the tower by securing the wires
The Utility box helps the tower by electrical communication
the Ladder helps the tower by letting employees on the top of it
What are the parts which make up the nacelle?
Anemometer
Mechanical brake
Rotor, Gearbox, Generator, Yaw motor, and the controller
Sandwich
How do they help the nacelle?
The rotor helps the nacelle by catching the wind and spins the main shaft.
The gearbox helps the nacelle by converting the rotation of the rotor from 22RPM into 1500RPM for the generator
The generator helps the nacelle making usable electricity using magnets and copper wire
The controller helps by telling the yaw motor to move the nacelle; monitors other turbine activity
The yaw motor helps the nacelle by turning the nacelle to face the wind; responds to the controller
The gearbox changes the turning force so that is has to go ____________ with less ______________ in every revolution.
Faster; Force
Slower; Power
The two types of brakes on a wind turbine are the ________________________ and the_________________________________.
Drum brakes; Disk brakes.
Car brakes: That taco bell taco
True or False – The wind turbine is controlled by one computer, called the controller.
False
True
At what speed is the wind turbine stopped so that damage does not occur?
27 meters per second
25 meters per second
42 meters per second
What turns the nacelle at the wind vane’s indication of wind direction?
The Tower
A potato chip
The generator
The yaw motor
Do yaw bearings’ teeth point outward or inward?
Both
Inward
Outward
What are the two ways that a generator can be cooled?
Air and Water
Mud and Hot sauce
Turning it off or slowing it down
How long is a rotor blade on a typical windmill?
128ft
212ft
116ft
100ft
What is the name of the force pulling the plane up?
Oxygen
Gravity
Lift
None of the above
The rotor blades of a wind turbine are like the wings of a ___________________.
A glider
A jet
A plane
A bird
What makes the glass fiber hard?
Air
Plastic
Why do the shells have to be very smooth?
So the wind will not be slowed down
So they look nice
So they go slower
So they feel nice
What is electrical induction?
The production of an electromotive force across an electrical conductor in a changing magnetic field.
Atoms
A thing
A very worded question
Why is it important that the rotor is as high up in the sky as possible?
There's less wind
They want everyone to see their creation
The stronger the wind is, the more energy is in it.
Cause why not?
Where is the wind strongest?
In the sky
Top of the hill
How does wind behave when it meets a steep slope?
It stops
It goes down
it goes up and keeps on going.
It slows down
What are the components of concrete?
Rock, sand, and gravel.
Grey food dye
Atoms
How long can a wind turbine generate electricity?
2 hours
27-30 years
20-25 years
