Windbreaks - Shelter Belts MCQs

Option A: Trees and / or shrubs can substantially improve the productivity of farmlands

Option B: They are exposed to strong winds

Option C: Both (a) & (b)

Option D: None of these

Correct Answer: Both (a) & (b) ✔

Option A: Trees and shrubs best suited or preferred by the farmer how much space is available

Option B: And whether the land is irrigated or rain fed.

Option C: Both (a) & (b)

Option D: None of these

Correct Answer: Both (a) & (b) ✔

Option A: The air is baffled and mixed as it hits the wind breaks

Option B: Causing a disruptive turbulence patterns which spoils the energy and velocity of the wind

Option C: This mixing and churning continues as the pressure gradient is built by the windbreak and the air leaks through or rolls over the top of the screen

Option D: All of the above

Correct Answer: All of the above ✔

Option A: 50%

Option B: 60%

Option C: 70%

Option D: 80%

Correct Answer: 50% ✔

Option A: 1H

Option B: 2H

Option C: 3H

Option D: 4H

Correct Answer: 2H ✔

Option A: 15%

Option B: 20%

Option C: 25%

Option D: 30%

Correct Answer: 25% ✔

Option A: Are carefully measured at various points on a line perpendicular to the center of the windbreak

Option B: By calculation, it can be shown that the total potential yields for most crops will be 2-10% greater on the field

Option C: Both (a) & (b)

Option D: None of these

Correct Answer: Both (a) & (b) ✔

Option A: Grazing protection

Option B: Fire protection

Option C: Pruning

Option D: Harvesting

Correct Answer: All of the above ✔