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?
Evaluate energy balance of steam turbine plant
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Heat losses in a turbine and turbine system are analysed Completed |
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An enthalpy/entropy diagram is used to show how steam properties change through a turbine Completed |
Evidence:
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The affect air heaters and economisers have on turbine plant efficiency is explained Completed |
Evidence:
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Practical methods of verifying energy losses are detailed Completed |
Evidence:
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Explain construction and operation of feed system
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Operation and components of the complete feed system are outlined Completed |
Evidence:
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Construction, operating principles and maintenance requirements of a regenerative condenser are explained Completed |
Evidence:
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Causes of loss of vacuum are identified Completed |
Evidence:
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Construction and operation of air ejectors, vacuums and extraction pumps are explained Completed |
Evidence:
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Construction and operation of gland condensers, low-pressure heaters, drain coolers and high-pressure heaters are explained Completed |
Evidence:
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General arrangement and construction of turbo-feed pumps is outlined Completed |
Evidence:
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Governor control is explained Completed |
Evidence:
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Operating principles and construction details of de-aerators are explained Completed |
Evidence:
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Explain construction, operation and repair of high-pressure water tube boilers
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Operating principles of high-pressure boilers, including water and gas flow circulation are explained Completed |
Evidence:
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Drum, internal fittings and support and expansion arrangements are outlined Completed |
Evidence:
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Procedures for repairing a membrane wall furnace are clarified Completed |
Evidence:
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Operating principles and construction methods of integral and external superheaters are explained Completed |
Evidence:
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Construction and operation of economisers and air heaters is explained Completed |
Evidence:
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Chemistry of combustion is explained Completed |
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Typical burner register arrangements are outlined Completed |
Evidence:
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Construction, operation and maintenance of boiler gauge glasses and safety valves is explained Completed |
Evidence:
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Operation of boiler control and soot blowing system is detailed Completed |
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Blow-down procedure for a high pressure boiler is prepared Completed |
Evidence:
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Explain requirements for feed water treatment for high-pressure water tube boilers
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How salts are precipitated and how metal is corroded in the boiler and feed system is explained and method of prevention is outlined Completed |
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How oxygen is eliminated in high-pressure boilers is shown Completed |
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How pH is measured and controlled is explained Completed |
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Normal and maximum operating limits for boiler feed water treatment are identified and procedure to follow if these limits are exceeded is clarified Completed |
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Purpose and procedure for different types of tests of boiler water chemistry are explained Completed |
Evidence:
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Explain construction and operation of high-pressure turbines
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Flow of steam through nozzles is analysed, and pressure and velocity compounding are illustrated Completed |
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Construction of blades, bearings, glands, rotors and casings is explained Completed |
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Warming-through procedure prior to start up is explained Completed |
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Routine checks during operation are detailed Completed |
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Emergency operation of plant with one turbine inoperative is outlined Completed |
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Turbine shutdown procedure is clarified Completed |
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Routine checks carried out at a turbine plant survey are detailed Completed |
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Precautions necessary when turbine and gearing casings are open are explained and any repairs or adjustments that may be required are identified Completed |
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Performance of steam plant by routine observations of pressure temperature speed and vibration of turbine, gearing and associated systems is analysed Completed |
Evidence:
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Explain turbine gearing arrangements
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Single and double reduction gearing systems are outlined Completed |
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Use of double helical involute gear teeth is explained Completed |
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Advantages and disadvantages of single and double locked tandem gearboxes are detailed Completed |
Evidence:
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Purpose of fitting a nodal drive in gearing system is clarified Completed |
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Construction and reason for installing flexible couplings in gearing system is explained Completed |
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Layout of a turbo-electric drive is detailed Completed |
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Analyse flow of air and gas through a simple cycle marine gas turbine
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Construction of compressor, combustion system and single and two shaft turbines is explained Completed |
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Necessary controls required for control and protection of plant are confirmed Completed |
Evidence:
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Accessories necessary for safe operation of simple cycle marine gas turbines are listed Completed |
Evidence:
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