Photo AI
6.1 Study the image of a centre-pivot irrigation system below and answer the questions that follow - NSC Agricultural Technology - Question 6 - 2022 - Paper 1
Question 6
6.1 Study the image of a centre-pivot irrigation system below and answer the questions that follow. 6.1.1 Explain the structure's ability to carry the heavy load of... show full transcript
Worked Solution & Example Answer:6.1 Study the image of a centre-pivot irrigation system below and answer the questions that follow - NSC Agricultural Technology - Question 6 - 2022 - Paper 1
Step 1
Explain the structure's ability to carry the heavy load of the irrigation system.
Answer
The centre-pivot irrigation system is designed to handle heavy loads mainly due to its structural features:
- Triangulation/Truss Method: The structure utilizes a triangulated design which distributes weight efficiently, reducing the stress on individual supports.
- Arched Design: The arched design provides additional strength, enabling it to withstand both static and dynamic loads.
- Steel Cables and Rods: Strong materials like steel are used in the construction of cables and rods that add to the structural integrity and load-bearing capacity.
Step 2
Suggest ONE possible cause of sprinkler nozzle blockage and give a solution to the problem.
Answer
One possible cause of sprinkler nozzle blockage can be sand or fertilizer particles that can accumulate and clog the nozzle. A potential solution is to install a filter in the system to prevent these particles from entering the sprinkler nozzles.
Step 3
State THREE factors to consider when selecting a water pump for the system above.
Answer
When selecting a water pump for a centre-pivot irrigation system, it's essential to consider the following factors:
- Water Source: Ensure that the pump is compatible with the type of water source available (e.g., well, river).
- Type of Pump: Different types of pumps (e.g., centrifugal, submersible) may be suitable based on the system's requirements.
- Size and Power: The size and power of the pump should match the system's flow and pressure requirements, including any available pump models and their abilities.