MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Wind Energy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Offshore wind turbines are not erected in water bodies. |
| A. | False |
| B. | True |
| Answer» B. True | |
| 2. |
Wind turbines require regular maintenance. |
| A. | False |
| B. | True |
| Answer» C. | |
| 3. |
What is the cost of a wind turbine per megawatt? |
| A. | $10000 |
| B. | $1000 |
| C. | $100 |
| D. | $1 million |
| Answer» E. | |
| 4. |
What is a yaw drive? |
| A. | A device used to support and stabilize other components |
| B. | A device used to house various energy conversion components |
| C. | A motor to ensure that nacelle faces the wind |
| D. | A device used to track wind direction |
| Answer» D. A device used to track wind direction | |
| 5. |
What is a pitch drive motor? |
| A. | A motor that senses wind direction |
| B. | A motor to control the angle of blades |
| C. | A motor to ensure nacelle faces in the direction of the wind |
| D. | A motor to rotate the blades |
| Answer» C. A motor to ensure nacelle faces in the direction of the wind | |
| 6. |
What is the main function of gearbox in a wind turbine system? |
| A. | Multiples rotation speed to generate electricity |
| B. | Divides rotation speed to generate electricity |
| C. | Multiples rotation speed to consume wind energy |
| D. | Divides rotation speed to consume wind energy |
| Answer» B. Divides rotation speed to generate electricity | |
| 7. |
Nacelle is a kiosk that houses ______ |
| A. | a MOSFET |
| B. | a diode |
| C. | a wifi router |
| D. | a yaw drive |
| Answer» E. | |
| 8. |
What is a hybrid type tower? |
| A. | Guyed tower |
| B. | Guyed tower and wooden tower |
| C. | Thin and tall lattice type guyed tower |
| D. | Guyed tower and electric pole |
| Answer» D. Guyed tower and electric pole | |
| 9. |
Which of the following towers is used for small wind turbines? |
| A. | Hybrid tower |
| B. | Guyed pole tower |
| C. | Electric pole |
| D. | Wooden pole |
| Answer» C. Electric pole | |
| 10. |
What is the main function of tower in a wind turbine system? |
| A. | Acts a support to all other components used in wind turbine system |
| B. | Acts as an antenna for wireless radio communications |
| C. | Acts as an electric pole for power transportation |
| D. | Destabilizes the wind turbine system |
| Answer» B. Acts as an antenna for wireless radio communications | |
| 11. |
Which of the following are the major parts of a wind turbine system? |
| A. | Tower, rotor, water storage tank, air compressor |
| B. | Tower, rotor and blades, air compressor, vacuum pump, electricity generator |
| C. | Electricity generator, nacelle, rotor and blades, power converter, building |
| D. | Tower, nacelle, rotor and blades, power converter, electricity generator |
| Answer» E. | |
| 12. |
Fatigue testing of rotor blades subject the blades to an oscillation in _______ direction. |
| A. | horizontal |
| B. | vertical |
| C. | flapwise |
| D. | diagonal |
| Answer» D. diagonal | |
| 13. |
Which of the following materials can be used to make a rotor blade of a wind turbine apart from glass fibre reinforced polyester (GRP)? |
| A. | Silicon, germanium |
| B. | Epoxy, carbon fibre |
| C. | Plastic |
| D. | Salt |
| Answer» C. Plastic | |
| 14. |
Which of the following materials are used to make a rotor blade of a wind turbine? |
| A. | Glass fibre reinforced polyester |
| B. | Salt |
| C. | Sugar |
| D. | Plastic |
| Answer» B. Salt | |
| 15. |
What is the main disadvantage of a horizontal axis wind turbine? |
| A. | Easy operation at near ground winds |
| B. | Does not self-start |
| C. | Difficult operation at near ground winds |
| D. | High starting torque |
| Answer» D. High starting torque | |