PPSCFPSCNTSPakistan govt jobs
- Subject
- Forestry Mcqsforestry-mcqs
- Published
- 24 May 2024
- Last updated
- 28 May 2026
In Pakistan, due to the limited size of agricultural fields, windbreaks typically consist of 2 or 3 rows. The protective influence of these windbreaks generally extends approximately 12 times the height downwind and _____ times the height upwind. What is the upwind distance factor?
Multiple choice question for Forestry Mcqs. Select an option, then review the explanation below.
Explanation
In small fields like those common in Pakistan, windbreaks with 2 or 3 rows typically influence wind flow up to about 12 times their height downwind and approximately 2 times their height upwind, providing effective protection within these distances.
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Practice related questions from the same subject.
- 1.What do windbreaks or shelterbelts typically encompass?
- 2.What factors determine the type of windbreak used?
- 3.Which of the following best describes how windbreaks operate?
- 4.What is the optimal crown density percentage for tall rows when low-profile shrubs and rows have a full 100% crown density in an effective windbreak design?
- 5.Which crown density, when compared to a 50% density windbreak, results in a less effective windbreak than one with either 50% or 100% density?