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Q1: Which control system ensures the rotor always faces changing wind directions?
Pitch control only
Torque control
Voltage control
Yaw control
Q2: An advantage of distributed small-scale wind installations is:
Higher blade tip speeds
Reduced transmission losses
Increased overall environmental impact
Lower noise emissions
Q3: Which monitoring technique can detect blade damage early?
Monthly stopwatch inspections
Thermal imaging and acoustic sensors
Visual checks by helicopter
Oil-level measurement
Q4: What is the primary benefit of direct-drive wind turbines?
Use of a gearbox to increase speed
Heavier nacelle weight
Requirement for higher wind speeds
Simpler design and reduced maintenance
Q5: Which factor has the greatest impact on a wind farm's levelized cost of energy (LCOE)?
Solar irradiance
Capital investment and capacity factor
Price of natural gas
Water usage
Q6: How do smart inverters support grid stability for wind farms?
They provide reactive-power support and voltage regulation
They export power at a fixed frequency
They store energy onsite
They physically align the blades
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