Title: Module 1 Test
Course: WIND 100WH Introduction to Wind Energy > Section: WIND 100WH Introduction to Wind Energy

Q: The Ancients used wind power for _____.
- sailing ships
- electrical power
- pumps
- cooking
A: sailing ships

Q: _____ use the wind to create mechanical power, while _____ use the wind to generate electrical power.
- Wind mills / wind turbines
- Housings / nacelles
- Winds / turbines
- Wind vanes / wind plants
A: Wind mills / wind turbines

Q: A wind turbine rotor changes wind into a/n _____ motion and a generator changes this motion into _____ power.
- linear / dynamic
- rotating / electrical
- electrical / wind
- mechanical / mechanical
A: rotating / electrical

Q: The device that changes rotating mechanical power into electrical power is called the _____.
- electro-mechanism
- shifter
- electric battery
- electric generator
A: electric generator

Q: A wind _____ generates _____ power from _____.
- power farm / mechanical / the electricity
- turbine / wind / the electricity
- turbine / wind / the wind
- turbine / electrical / the wind
A: turbine / electrical / the wind

Q: The six basic functional parts of a HAWT are: _____.
- the blades, rotor, low-speed shaft, gearbox, high-speed shaft, and generator
- the rotor, cap, twist, blade system, tower, and shaft
- the rotor, bender, tower hull, blades, tower, and input shaft
- the rotor, cabinet, tower, blade system, and base
A: the blades, rotor, low-speed shaft, gearbox, high-speed shaft, and generator

Q: The acronym VAWT stands for _____.
- vertical air and wind transformation
- vertical access wind transfer
- vertical-axis wind turbine
- vertical access wind turbine
A: vertical-axis wind turbine

Q: The Darrieus and Savonius designs are the most common types of HAWTs.
- True
- False
A: False

Q: A nacelle is a/n _____.
- enclosure or housing for the generator, gearbox, and other parts
- device for controlling wind flow currents
- enclosure housing the gearbox and vertical shafts
- lift for people to work on a turbine
A: enclosure or housing for the generator, gearbox, and other parts

Q: Most wind turbines use a multispeed _____ to keep the high-speed shaft running at a near constant speed and use a/n _____ to produce electricity at exactly 60 Hz.
- gearbox / inverter
- generator / coupler
- shaft / phase timer
- differential / transformer
A: gearbox / inverter

Q: What does OPEC stand for?
- Organization of Petroleum Exporting Countries
- Occupation Power and Energy Consortium
- Occupied, Powered, Electrical Chassis
- Organization for Plant and Environmental Concerns
A: Organization of Petroleum Exporting Countries

Q: The difference between power and energy is _____.
- energy is a product of force and distance and power is energy consumed per unit of time
- energy is power consumed per unit of time and power is a product of force and distance
- all of the above
- none of the above
A: energy is a product of force and distance and power is energy consumed per unit of time

Q: The three basic parts of a HAWT are the _____.
- vertical shaft, gearbox, and generator
- horizontal shaft, transformer, and gearbox
- tower, nacelle, and rotor assemblies
- generator, pad, and wind meter
A: tower, nacelle, and rotor assemblies

Q: Wind turbine generators produce _____ or _____ voltage depending on their design.
- ac / DC
- ac / KW
- DC / RC
- NC / NF
A: ac / DC

Q: A megawatt of power is equal to how many watts?
- 100
- 700,000
- 1,000,000
- 0.000,001
A: 1,000,000

Q: The gearbox is designed to increase the rpm of the rotor (low-speed shaft) to a suitable speed for the generator via the high-speed shaft. With the turbine active, the high speed shaft rotates at a rate of around _____ rpm.
- 3,600
- 1,100
- 1,800
- 800
A: 1,800

Q: The rotation within the wind turbine gearbox is set into motion by the _____.
- high-speed shaft assembly
- low-speed shaft assembly
- generator gear
- nacelle box
A: low-speed shaft assembly

Q: If voltage coming out of an inverter needs to be increased in order to tie to the grid, a _____ is required.
- convertor
- inverter
- transformer
- multiplexer
A: transformer

Q: Most larger wind turbines use this very important type of control system to move the nacelle, which accommodates for the change in wind direction.
- PLC control
- Pitch control
- Yaw control
- Arch control
A: Yaw control

Q: The early purpose of harnessing wind energy was to provide what functions?
- To pump water and create electricity
- To grind grain and produce electricity
- To grind grain, pump water, and move ships
- To grind grain, make electricity, and machine parts
A: To grind grain, pump water, and move ships

Q: The most common type of wind turbine is the _____.
- VANR
- VAWT
- HAWT
- HTWA
A: HAWT

Q: A horizontal-axis wind turbine can be setup as a/n _____ or _____ -type turbine.
- up-wind / over-wind
- upwind / downwind
- down / diagonal
- pitched over / graded up
A: upwind / downwind

Q: A wind turbine is classified as a large turbine when its electrical power output is above _____.
- 50kW
- 500kWH
- 500kW
- 250MW
A: 500kW

Q: A site can be classified as a wind farm when it contains more than _____ turbines on the site.
- 5
- 2
- 12
- 50
A: 2

Q: As an incentive to wind turbine developers, local and/or state governments may offer _____ for the installation of wind turbines.
- tax breaks
- grants
- loans
- all of the above
A: all of the above

Q: A job in the wind power industry is sometimes called a/n _____ job.
- blue collar
- O&M
- green collar
- none of the above
A: green collar

Q: Keeping a wind farm on schedule and within budget is the responsibility of the _____.
- site lead
- architectural manager
- oversight crew
- project manager
A: project manager

Q: There are three main specifications for the wind turbine; name them. (6pts, 2pts each answer)

Q: The cut out wind speed is measured in what? (Clue: It's a rate of change)

Q: Please list three environmental issues affecting the placement of a wind turbine.