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Q1: Which service reduces structural loads during high winds?
Locking the blades
Increasing rotor speed
Pitch feathering
Shutting off the yaw motor
Q2: Which grid-integration challenge is unique to wind energy?
Constant base-load management
Voltage flicker due to variablity
Excessive fossil-fuel backups
Synchronizing with tidal patterns
Q3: What foundation type is most common for offshore turbines in shallow waters (less than 50m)?
Spar buoy
Monopile
Tension-leg platform
Gravity-based structure
Q4: Turbulence intensity at a site is defined as:
Maximum gust speed
Rotor tip speed
Average wind speed
Standard deviation of wind speed over mean wind speed
Q5: A floating offshore turbine's key advantage is:
Lower wind speeds
Reduced maintanence cost
Installation in deep waters away from populations
No transmission cables required
Q6: How can aerodynamic noise from blades be reduced?
Adding serrations or trailing-edge modifications
Using metal blades
Operating only at night
Increasing blade chord
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