The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!
From the Wiki University
What evidence can you provide to prove your understanding of each of the following citeria?
Identify irrigation system requirements from the irrigation design
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The components for an irrigation pumping system are identified Completed |
Evidence:
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The water source and height of pull for water into the system are determined Completed |
Evidence:
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The water output for irrigation is determined Completed |
Evidence:
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The total friction loss of irrigation components is calculated Completed |
Evidence:
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Select pump according to type, installation, range of flow rates, operating head and delivery distance
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The basic type of pump is selected based on the pump task and placement and the power source Completed |
Evidence:
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The total operating head required is calculated Completed |
Evidence:
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The required discharge for the pump is calculated based on the irrigation output required and friction losses in the system Completed |
Evidence:
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The speed and power requirements of the pump motor are determined Completed |
Evidence:
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The limiting suction lift of the pump is determined Completed |
Evidence:
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Pump performance curves are interpreted in selecting an efficient irrigation pump Completed |
Evidence:
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Size of impeller is determined from the pump curve Completed |
Evidence:
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Install pumps
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Pump is sited as close as possible to water source and level Completed |
Evidence:
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Suction and delivery pipes are attached correctly Completed |
Evidence:
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Pump connections are airtight Completed |
Evidence:
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The pump is anchored on a base Completed |
Evidence:
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Pump and motor connection are correctly aligned Completed |
Evidence:
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Ventilation is provided for the motor Completed |
Evidence:
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Filters and valves are fitted and valves are correctly oriented
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Pump is connected to the irrigation controller if required Completed |
Evidence:
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Commission and test irrigation pumps
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Procedures are developed and implemented for carrying out pre-start checks Completed |
Evidence:
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Pump start up procedures are developed and implemented Completed |
Evidence:
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Pumps are pressure tested to check delivery performance Completed |
Evidence:
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Power usage and water output is checked against requirements and pump specifications Completed |
Evidence:
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Pumping system is checked for leakages and cavitation Completed |
Evidence:
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Pump control systems are checked for accurate operation Completed |
Evidence:
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Develop maintenance procedures for the pumping system
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Routine maintenance procedures are developed to rectify the effects of normal wear Completed |
Evidence:
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Periodic inspection checklists are developed to assist in maintenance scheduling Completed |
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Pump overhaul or repairs are carried out Completed |
Evidence:
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A pump maintenance record is kept, including details of the pump and all pumping system components for ordering Completed |
Evidence:
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Carry out troubleshooting on pumping systems
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Lack of discharge and/or pressure are investigated and settings or components changed Completed |
Evidence:
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Loss of water suction is investigated and alteration made to placement or leakages fixed Completed |
Evidence:
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Cavitation in pumps is investigated and settings or components changed Completed |
Evidence:
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Excessive power consumption is investigated and design and pump selection reviewed and checks made for mechanical defects Completed |
Evidence:
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