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?
Distinguish between different types of auxiliary boilers
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Design and use of water tube and fire tube auxiliary boilers are compared and contrasted Completed |
Evidence:
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Movement of water and gas in an operating boiler is sketched |
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Completed |
Evidence:
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How variations to operating pressure and saturation temperature in an auxiliary boiler can be used to get wet, dry or superheated steam is explained |
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Completed |
Evidence:
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Recognise different functions of steam and different components of steam systems
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Key features of steam and other heating systems are compared and contrasted Completed |
Evidence:
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Steam side requirements of an auxiliary steam turbo alternator are compared and contrasted with other steam-powered machinery |
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Completed |
Evidence:
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Typical steam and condensate system are outlined |
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Completed |
Evidence:
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Explain fuel oil system of auxiliary boilers
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Combustion process is explained and factors that affect combustion in a boiler are outlined Completed |
Evidence:
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Differentiation is made between different burner types |
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Completed |
Evidence:
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Operation of a complete fuel oil system for an auxiliary boiler, including the functions of components for automatic combustion control, is outlined |
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Completed |
Evidence:
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Explain procedures for operating fired and unfired boilers
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Locations of all mountings and fittings on auxiliary boilers are identified and their functions are outlined Completed |
Evidence:
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Purpose of all alarms and shutdowns incorporated in auxiliary boilers is clarified |
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Completed |
Evidence:
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Types and operation of safety valves are outlined |
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Completed |
Evidence:
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Procedure for lighting off a boiler from cold is clarified |
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Completed |
Evidence:
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Procedure for laying up for short and long periods, including full blow down and shutdown procedures, is clarified |
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Completed |
Evidence:
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Procedure for isolating an auxiliary boiler after shutdown is clarified |
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Completed |
Evidence:
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Explain procedures for sampling and testing boiler water
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Effects of poor water treatment practices on safety and boiler function are identified Completed |
Evidence:
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Correct procedure for taking boiler and feed water sample and possible errors that might occur are clarified |
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Completed |
Evidence:
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Common water tests carried out are outlined and typical results are stated |
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Completed |
Evidence:
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Chemicals used for treatment of boiler water are named and acceptable range of chemical reserves found in boiler waters are confirmed |
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Completed |
Evidence:
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Explain procedure for maintaining water level in the boiler
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Method of testing and changing a gauge glass is outlined Completed |
Evidence:
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Effects of blockages in water, steam and drain cocks on levels in gauge glass are outlined |
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Completed |
Evidence:
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Procedure for when a gauge glass apparently shows no water is clarified |
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Completed |
Evidence:
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Explain common hazards and defects and relevant prevention/ control procedures
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Hazards and defects associated with auxiliary boilers are identified Completed |
Evidence:
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How water hammer can be prevented in auxiliary boilers is outlined |
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Completed |
Evidence:
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Symptoms, causes, effects and actions to be taken in the event of oil contamination of boiler water are determined |
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Completed |
Evidence:
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Difference between and measures taken to avoid fire and water side explosions are clarified |
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Completed |
Evidence:
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Causes, mechanism, prevention and control of economiser fires are detailed |
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Completed |
Evidence:
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