Questions and answers for exam Preparation

MCQs

Total Questions : 192 | Page 2 of 20 pages

Question 11. What are horizontal wind turbines?

Wind turbines are rotate about an axis perpendicular to the plane of ground
Wind turbines are rotate about an axis diagonal to the plane of ground
Wind turbines are rotate about an axis 30 degrees to the plane of ground
Wind turbines are rotate about an axis parallel to the plane of wind streamlines

Discuss Question

Answer: Option D. -> Wind turbines are rotate about an axis parallel to the plane of wind streamlines
Answer: (d).Wind turbines are rotate about an axis parallel to the plane of wind streamlines

Question 12. What is the main advantage of an upwind turbine?

Increased tower shadow effect
Reduced tower shadow effect
No tower shadow effect
Manufacturing

Discuss Question

Answer: Option B. -> Reduced tower shadow effect
Answer: (b).Reduced tower shadow effect

Question 13. Which of the following is an advantage of a horizontal axis wind turbine?

Blades are to the side of turbine’s center of gravity
Blades are parallel to the vertical axis passing through the turbine’s center of gravity
Blades are parallel to the horizontal axis passing through the turbine’s center of gravity
Blades are positioned perpendicular to the plane of the ground

Discuss Question

Answer: Option A. -> Blades are to the side of turbine’s center of gravity
Answer: (a).Blades are to the side of turbine’s center of gravity

Question 14. What is an upwind turbine?

Rotor of the turbine is behind the unit
Rotor of the turbine is in front of the unit
Rotor is positioned at the bottom of the tower
Rotor is positioned at the center of the tower

Discuss Question

Answer: Option B. -> Rotor of the turbine is in front of the unit
Answer: (b).Rotor of the turbine is in front of the unit

Question 15. What is the main disadvantage of an upwind turbine?

Increased tower shadow effect
Reduced tower shadow effect
A rotor that needs to be placed at some distance from the tower
An inflexible rotor that needs to be placed close to the tower

Discuss Question

Answer: Option C. -> A rotor that needs to be placed at some distance from the tower
Answer: (c).A rotor that needs to be placed at some distance from the tower

Question 16. What are planetary or prevailing winds?

Winds not blowing from one latitude to another
Winds blowing from one latitude to another
Gusts
Winds that do not cover large areas of earth

Discuss Question

Answer: Option B. -> Winds blowing from one latitude to another
Answer: (b).Winds blowing from one latitude to another

Question 17. What are trade winds?

Winds blowing from equatorial low pressure areas to sub-tropical high pressure areas
Winds that trade with each other
Winds blowing from equatorial high pressure areas to sub-tropical low pressure areas
Winds blowing from sub-tropical high pressure areas to equatorial low pressure areas

Discuss Question

Answer: Option D. -> Winds blowing from sub-tropical high pressure areas to equatorial low pressure areas
Answer: (d).Winds blowing from sub-tropical high pressure areas to equatorial low pressure areas

Question 18. How does Coriolis effect trade winds in Northern Hemisphere?