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. |
What is the main disadvantage of a vertical axis wind turbine? |
| A. | Not directional and insensitive to wind turbulence |
| B. | More drag than HAWTs |
| C. | Less drag than HAWTs |
| D. | High starting torque |
| Answer» C. Less drag than HAWTs | |
| 2. |
What is the main advantage of a vertical axis wind turbine? |
| A. | Directional and sensitive to wind turbulence |
| B. | Not directional and sensitive to wind turbulence |
| C. | Directional and insensitive to wind turbulence |
| D. | Not directional and insensitive to wind turbulence |
| Answer» E. | |
| 3. |
What are the types of VAWT? |
| A. | Lift, horizontal |
| B. | Horizontal, vertical |
| C. | Drag, lift |
| D. | Urban wind turbines |
| Answer» D. Urban wind turbines | |
| 4. |
What is a vertical wind turbine? |
| A. | Wind turbines are rotate about an axis perpendicular to the plane of wind streamlines |
| B. | Wind turbines are rotate about an axis diagonal to the plane of ground |
| C. | Wind turbines are rotate about an axis 30 degrees to the plane of ground |
| D. | Wind turbines are rotate about an axis parallel to the plane of ground |
| Answer» B. Wind turbines are rotate about an axis diagonal to the plane of ground | |
| 5. |
What is the main disadvantage of a downward wind turbine? |
| A. | Increased tower shadow effect |
| B. | Flexible rotor blades |
| C. | Inflexible rotor blades |
| D. | Bending of blades at high wind speeds |
| Answer» C. Inflexible rotor blades | |
| 6. |
What is the main advantage of any downwind turbine? |
| A. | Inflexible rotor blades |
| B. | Flexible rotor blades |
| C. | Position of the rotor |
| D. | Reduced tower shadow effect |
| Answer» C. Position of the rotor | |
| 7. |
What is a downwind turbine? |
| A. | Rotor is positioned at the three-quarters of the height of the tower |
| B. | Rotor of the turbine is in front of the unit |
| C. | Rotor is positioned at the bottom of the tower |
| D. | Rotor of the turbine is behind the unit |
| Answer» E. | |
| 8. |
What is the main disadvantage of an upwind turbine? |
| A. | Increased tower shadow effect |
| B. | Reduced tower shadow effect |
| C. | A rotor that needs to be placed at some distance from the tower |
| D. | An inflexible rotor that needs to be placed close to the tower |
| Answer» D. An inflexible rotor that needs to be placed close to the tower | |
| 9. |
What is the main advantage of an upwind turbine? |
| A. | Increased tower shadow effect |
| B. | Reduced tower shadow effect |
| C. | No tower shadow effect |
| D. | Manufacturing |
| Answer» C. No tower shadow effect | |
| 10. |
What is an upwind turbine? |
| A. | Rotor of the turbine is behind the unit |
| B. | Rotor of the turbine is in front of the unit |
| C. | Rotor is positioned at the bottom of the tower |
| D. | Rotor is positioned at the center of the tower |
| Answer» C. Rotor is positioned at the bottom of the tower | |
| 11. |
Which of the following is an advantage of a horizontal axis wind turbine? |
| A. | Blades are to the side of turbine’s center of gravity |
| B. | Blades are parallel to the vertical axis passing through the turbine’s center of gravity |
| C. | Blades are parallel to the horizontal axis passing through the turbine’s center of gravity |
| D. | Blades are positioned perpendicular to the plane of the ground |
| Answer» B. Blades are parallel to the vertical axis passing through the turbine’s center of gravity | |
| 12. |
What are horizontal wind turbines? |
| A. | Wind turbines are rotate about an axis perpendicular to the plane of ground |
| B. | Wind turbines are rotate about an axis diagonal to the plane of ground |
| C. | Wind turbines are rotate about an axis 30 degrees to the plane of ground |
| D. | Wind turbines are rotate about an axis parallel to the plane of wind streamlines |
| Answer» E. | |
| 13. |
Which of the following are commonly used commercial wind turbines? |
| A. | Vertical and DFIG |
| B. | Horizontal and SCIG |
| C. | Horizontal and vertical |
| D. | DFIG and SCIG |
| Answer» D. DFIG and SCIG | |
| 14. |
Which of the following components of a wind turbine system is arranged in the order in which energy is being converted? |
| A. | Blades – rotor – electric generator – shaft |
| B. | Blades – rotor – shaft – electric generator |
| C. | Shaft – blades – rotor – electric generator |
| D. | Electric generator – blades – rotor — shaft |
| Answer» C. Shaft – blades – rotor – electric generator | |
| 15. |
Wind turbines convert wind energy to ________ |
| A. | mechanical energy |
| B. | electrical energy |
| C. | heat energy |
| D. | solar energy |
| Answer» B. electrical energy | |