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Which organization initiated the formulation of the national standard for pressurized irrigation systems?
Which organization initiated the formulation of the national standard for pressurized irrigation systems?
What is the primary role of the Bureau of Agriculture and Fisheries Standards (BAFS) according to the provided text?
What is the primary role of the Bureau of Agriculture and Fisheries Standards (BAFS) according to the provided text?
Which Republic Act is also known as the Agricultural and Fisheries Mechanization Law of 2013?
Which Republic Act is also known as the Agricultural and Fisheries Mechanization Law of 2013?
Which of the following best describes the use of “shall” in the context of this standard?
Which of the following best describes the use of “shall” in the context of this standard?
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According to the document, who is responsible for the approval of the standard?
According to the document, who is responsible for the approval of the standard?
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What is the system capacity, $Q$, calculated as?
What is the system capacity, $Q$, calculated as?
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What body is responsible for setting the rules for the structure and drafting of international standards?
What body is responsible for setting the rules for the structure and drafting of international standards?
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What does the term 'TDH' represent in the pump power calculation?
What does the term 'TDH' represent in the pump power calculation?
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What is the primary focus of the project that initiated this standard?
What is the primary focus of the project that initiated this standard?
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What is crucial for the pump power requirement calculation?
What is crucial for the pump power requirement calculation?
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What does the word should
indicate in the context of this document?
What does the word should
indicate in the context of this document?
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In designing a sprinkler system, which of these is included in the 'map of design'?
In designing a sprinkler system, which of these is included in the 'map of design'?
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What is a factor in determining the sprinkler type?
What is a factor in determining the sprinkler type?
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What does the variable 'w' represent in the sprinkler application rate formula?
What does the variable 'w' represent in the sprinkler application rate formula?
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A sprinkler system has 100 sprinklers, each with a discharge of 0.05 m³/h. What is the total system capacity, Q?
A sprinkler system has 100 sprinklers, each with a discharge of 0.05 m³/h. What is the total system capacity, Q?
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What is the purpose for calculating the sprinkler’s application rate?
What is the purpose for calculating the sprinkler’s application rate?
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According to the sprinkler characteristics table, what is the approximate discharge of a sprinkler with nozzle diameters of 4.76 x 3.97 mm at a pressure of 345 kPa?
According to the sprinkler characteristics table, what is the approximate discharge of a sprinkler with nozzle diameters of 4.76 x 3.97 mm at a pressure of 345 kPa?
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Using the system capacity formula provided, if a system has 3 laterals operating at a time, with 10 sprinklers per lateral, and each sprinkler has a discharge of $0.00028 m^3/s$, what is the system capacity in m³/h?
Using the system capacity formula provided, if a system has 3 laterals operating at a time, with 10 sprinklers per lateral, and each sprinkler has a discharge of $0.00028 m^3/s$, what is the system capacity in m³/h?
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What is the maximum allowed total pressure variation in the laterals, expressed as a percentage of the design pressure?
What is the maximum allowed total pressure variation in the laterals, expressed as a percentage of the design pressure?
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What is the first component to consider when calculating Total Dynamic Head for a sprinkler system?
What is the first component to consider when calculating Total Dynamic Head for a sprinkler system?
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What is a key consideration when selecting pipe sizes for mains and laterals, if the lateral runs up or downhill?
What is a key consideration when selecting pipe sizes for mains and laterals, if the lateral runs up or downhill?
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What should be considered when determining the friction loss in the main line?
What should be considered when determining the friction loss in the main line?
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What percentage of the sum of all standard heads is added to account for fittings in Total Dynamic Head calculation?
What percentage of the sum of all standard heads is added to account for fittings in Total Dynamic Head calculation?
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What is the maximum recommended velocity in the main line?
What is the maximum recommended velocity in the main line?
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Which element is NOT directly a component of Total Dynamic Head but is considered in system design?
Which element is NOT directly a component of Total Dynamic Head but is considered in system design?
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In the pump power requirement equation, what does 'Q' represent?
In the pump power requirement equation, what does 'Q' represent?
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What is the maximum allowable friction loss in the laterals, expressed as a percentage of the average pressure?
What is the maximum allowable friction loss in the laterals, expressed as a percentage of the average pressure?
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What is the approximate wetted diameter of a sprinkler with a nozzle size of 6.35 x 3.97 mm at a pressure of 276 kPa?
What is the approximate wetted diameter of a sprinkler with a nozzle size of 6.35 x 3.97 mm at a pressure of 276 kPa?
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What is the purpose of the 'Map of Design', according to the content?
What is the purpose of the 'Map of Design', according to the content?
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According to the content, what should be considered when sizing components like fittings and pipes?
According to the content, what should be considered when sizing components like fittings and pipes?
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According to the provided text, what is NOT a required component to be sized or selected based on system design?
According to the provided text, what is NOT a required component to be sized or selected based on system design?
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What is the purpose of the 'shed for the power components' mentioned in the text?
What is the purpose of the 'shed for the power components' mentioned in the text?
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What is a key disadvantage of plastic pipes in comparison to steel threaded pipes?
What is a key disadvantage of plastic pipes in comparison to steel threaded pipes?
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In what length are steel threaded pipes typically supplied?
In what length are steel threaded pipes typically supplied?
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What is the typical lifespan of welded hot-dip galvanized steel pipes when buried in soil?
What is the typical lifespan of welded hot-dip galvanized steel pipes when buried in soil?
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What is a key advantage of quick coupling light steel pipes?
What is a key advantage of quick coupling light steel pipes?
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What is the typical working pressure range (PN) of quick coupling light steel pipes?
What is the typical working pressure range (PN) of quick coupling light steel pipes?
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What is the primary use of quick coupling aluminum pipes in sprinkler irrigation setups?
What is the primary use of quick coupling aluminum pipes in sprinkler irrigation setups?
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How do quick coupling aluminum pipes compare in weight to the light steel pipes?
How do quick coupling aluminum pipes compare in weight to the light steel pipes?
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What are the common nominal diameter sizes (DN) available for quick coupling light steel pipes?
What are the common nominal diameter sizes (DN) available for quick coupling light steel pipes?
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What is the total irrigation time in hours if a single lateral is used per set, given a set time of 3.93 hours, 42 sets, and a move time of 1 hour?
What is the total irrigation time in hours if a single lateral is used per set, given a set time of 3.93 hours, 42 sets, and a move time of 1 hour?
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If two laterals are used per set, and the irrigation time per day is 17.8 hours with 21 total sets, approximately how many days of irrigation are required?
If two laterals are used per set, and the irrigation time per day is 17.8 hours with 21 total sets, approximately how many days of irrigation are required?
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What is the system capacity, given 2 center pivots (Nc), 16 sections per center pivot (Ns), and a sprinkler flow rate of 3.24 m³/hr (q)?
What is the system capacity, given 2 center pivots (Nc), 16 sections per center pivot (Ns), and a sprinkler flow rate of 3.24 m³/hr (q)?
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Given a lateral length of 195 m, a Hazen-Williams coefficient (C) of 120, and the specified pipe dimensions, what is the total friction loss (Hf) before adjustment?
Given a lateral length of 195 m, a Hazen-Williams coefficient (C) of 120, and the specified pipe dimensions, what is the total friction loss (Hf) before adjustment?
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What is the average pressure head (Ha) given a design pressure (Hd) of 9.81 m, a friction loss (hf) of 3.56 m, and a lateral length of 195 m?
What is the average pressure head (Ha) given a design pressure (Hd) of 9.81 m, a friction loss (hf) of 3.56 m, and a lateral length of 195 m?
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Study Notes
Philippine National Standard for Design of a Pressurized Irrigation System – Part A: Sprinkler Irrigation
- This standard outlines minimum requirements, criteria, and procedures for designing sprinkler irrigation systems, both periodic-move and continuous-move types.
- The standard references other relevant documents, including PNS/BAFS/PAES 217:2017, for irrigation water requirements.
- Key terms include average pressure, design pressure, distribution uniformity, irrigation period, and sprinkler irrigation.
- Sprinkler spacing is a crucial design factor, with guidelines provided for various wind speeds (e.g., up to 10 km/hr, 10-15 km/hr, above 15 km/hr).
- The recommended spacing is a percentage of the wetted diameter.
- Sprinkler systems (set systems, periodic-move systems, and continuous-move systems) are detailed with various operating principles (hand-move systems, side-roll systems, end-tow systems, centre-pivot systems, and linear-move systems).
- Materials for mainlines, submainlines, and laterals are covered in annex B.
- Several design criteria are presented that account for various factors like crop types, soil types, and irrigation water sources, and the recommended standards to adhere to.
- Data Requirements are detailed including topographic map specifications, land features, water resources data, and soil characteristics.
- Final design procedures are provided encompassing sprinkler spacing, system capacity, pipe size selection, total dynamic head, pump and power selection, etc.
- Formulas for various calculations are detailed to support design considerations such as net depth of water application (dnet), irrigation frequency (If), gross depth of water application (dgross) and preliminary system capacity (Qprelim).
- Annexes provide additional information on sprinkler types, recommended materials, and specific computations crucial for sprinkler system design.
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Description
Test your knowledge on the national standards for pressurized irrigation systems. This quiz covers key organizations, regulations, and technical terms related to agricultural mechanization. Assess your understanding of the Agricultural and Fisheries Mechanization Law and its implications for irrigation design.