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MCQs

Total Questions : 192 | Page 10 of 20 pages
Question 91. Fatigue testing of rotor blades subject the blades to an oscillation in _______ direction.
  1.    horizontal
  2.    vertical
  3.    flapwise
  4.    diagonal
 Discuss Question
Answer: Option C. -> flapwise
Answer: (c).flapwise
Question 92. Which of the following are the major parts of a wind turbine system?
  1.    Tower, rotor, water storage tank, air compressor
  2.    Tower, rotor and blades, air compressor, vacuum pump, electricity generator
  3.    Electricity generator, nacelle, rotor and blades, power converter, building
  4.    Tower, nacelle, rotor and blades, power converter, electricity generator
 Discuss Question
Answer: Option D. -> Tower, nacelle, rotor and blades, power converter, electricity generator
Answer: (d).Tower, nacelle, rotor and blades, power converter, electricity generator
Question 93. What is a hybrid type tower?
  1.    Guyed tower
  2.    Guyed tower and wooden tower
  3.    Thin and tall lattice type guyed tower
  4.    Guyed tower and electric pole
 Discuss Question
Answer: Option C. -> Thin and tall lattice type guyed tower
Answer: (c).Thin and tall lattice type guyed tower
Question 94. Which of the following towers is used for small wind turbines?
  1.    Hybrid tower
  2.    Guyed pole tower
  3.    Electric pole
  4.    Wooden pole
 Discuss Question
Answer: Option B. -> Guyed pole tower
Answer: (b).Guyed pole tower
Question 95. What is the main function of tower in a wind turbine system?
  1.    Acts a support to all other components used in wind turbine system
  2.    Acts as an antenna for wireless radio communications
  3.    Acts as an electric pole for power transportation
  4.    Destabilizes the wind turbine system
 Discuss Question
Answer: Option A. -> Acts a support to all other components used in wind turbine system
Answer: (a).Acts a support to all other components used in wind turbine system
Question 96. Nacelle is a kiosk that houses ______
  1.    a MOSFET
  2.    a diode
  3.    a wifi router
  4.    a yaw drive
 Discuss Question
Answer: Option D. -> a yaw drive
Answer: (d).a yaw drive
Question 97. What is the main function of gearbox in a wind turbine system?
  1.    Multiples rotation speed to generate electricity
  2.    Divides rotation speed to generate electricity
  3.    Multiples rotation speed to consume wind energy
  4.    Divides rotation speed to consume wind energy
 Discuss Question
Answer: Option A. -> Multiples rotation speed to generate electricity
Answer: (a).Multiples rotation speed to generate electricity
Question 98. What is the cost of a wind turbine per megawatt?
  1.    $10000
  2.    $1000
  3.    $100
  4.    $1 million
 Discuss Question
Answer: Option D. -> $1 million
Answer: (d).$1 million
Question 99. What is a pitch drive motor?
  1.    A motor that senses wind direction
  2.    A motor to control the angle of blades
  3.    A motor to ensure nacelle faces in the direction of the wind
  4.    A motor to rotate the blades
 Discuss Question
Answer: Option B. -> A motor to control the angle of blades
Answer: (b).A motor to control the angle of blades
Question 100. What is a yaw drive?
  1.    A device used to support and stabilize other components
  2.    A device used to house various energy conversion components
  3.    A motor to ensure that nacelle faces the wind
  4.    A device used to track wind direction
 Discuss Question
Answer: Option C. -> A motor to ensure that nacelle faces the wind
Answer: (c).A motor to ensure that nacelle faces the wind

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