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 diesel fuel systems
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Optimum combustion parameters, means of adjustment and legislation requirements limiting exhaust emissions are analysed Completed |
Evidence:
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Design modifications of pumps, camshafts and injectors for standard fuel types are evaluated Completed |
Evidence:
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Variable injection timing and fuel quality adjustments in service are justified, specifying common methods of adjustment Completed |
Evidence:
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Injection requirements for common diesel engine types, including combustion modifications for changes in engine service rating, are compared Completed |
Evidence:
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Faults and symptoms of common diesel fuel injection problems are analysed and appropriate adjustment is explained Completed |
Evidence:
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Work health and safety (WHS)/occupational health and safety (OHS) aspects of testing and handling fuel injection systems are explained Completed |
Evidence:
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Operation and normal operating pressures and temperatures of fuel systems are analysed Completed |
Evidence:
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Analyse cooling systems for main and auxiliary diesel engines
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Thermal efficiency optimisation of diesel engines and causes of thermal loads on engine components are explained Completed |
Evidence:
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Cooling media selection is justified and various diesel-cooling methods are evaluated Completed |
Evidence:
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Requirements of a coolant are identified and recorded Completed |
Evidence:
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Corrosion principles and combustion side corrosion problems are explained Completed |
Evidence:
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Appropriate action to be taken with common cooling system faults is established and evaluated Completed |
Evidence:
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How cooling systems are commissioned, monitored and stored during idle periods is explained Completed |
Evidence:
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Reasons for load-dependant cooling of diesel alternators on heavy fuels is explained Completed |
Evidence:
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Use of additives in cooling water is explained Completed |
Evidence:
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Normal operating temperatures, pressures and flow paths of typical methods of cooling medium and slow speed diesel engine pistons, exhaust valves, cylinders, turbochargers and cylinder heads are specified Completed |
Evidence:
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Evaluate diesel engine lubrication requirements
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Principles of engine lubrication are explained Completed |
Evidence:
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Different lubrication systems and demands each puts on oil are explained Completed |
Evidence:
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Methods for lubricating marine diesel engine components are specified and common faults are interpreted Completed |
Evidence:
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Conventional and synthetic lubricant properties and applications are identified Completed |
Evidence:
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Sources of contamination and deterioration of lubricants are analysed, treatment, monitoring and testing methods are explained, results are evaluated and appropriate action to be taken is outlined Completed |
Evidence:
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Diagrams showing direction of flow, typical clearances and stating normal operating temperatures and pressures are used to explain how lubricating oil is distributed to the guides, top-end, bottom-end and main bearings of diesel engines Completed |
Evidence:
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Methods of crosshead lubrication are outlined and compared Completed |
Evidence:
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Methods of medium and slow speed cylinder lubrication are evaluated Completed |
Evidence:
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Analyse diesel engine starting and manoeuvring
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Starting procedures for diesel engines for power generation, propulsion and emergency use are specified Completed |
Evidence:
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Starting and manoeuvring sequences/requirements for direct-coupled reversible and geared propulsion diesels, including CPP applications, are specified Completed |
Evidence:
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Common faults are analysed and appropriate action to be taken with diesel starting and manoeuvring systems is specified Completed |
Evidence:
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Major components of a propulsion diesel engine typical manoeuvring and reversing system are outlined using labelled diagrams, explaining how remote, local and emergency manoeuvring is achieved Completed |
Evidence:
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Methods of achieving reversing capability with direct-coupled propulsion diesels are evaluated Completed |
Evidence:
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Analyse causes of vibration
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Common materials used in diesel engine construction are identified, justifying selection and specifying typical compositions and physical properties of components Completed |
Evidence:
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Dynamic loads and stresses are summarised, identifying service limitations, and different methods of component fabrication and reclamation are evaluated Completed |
Evidence:
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Two- and four-stroke operating cycle forces, couples and moments, relating to design principles of crankshafts, bedplates, foundations and crossheads are analysed Completed |
Evidence:
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Out-of-balance gas and inertia forces, couples and moments, and their relationship with flywheels, balance weights, first/second order balancing and hull vibration are explained Completed |
Evidence:
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Factors contributing to torsional vibration are specified and methods of minimising or eliminating harmful effects of critical speeds are outlined Completed |
Evidence:
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Torsional vibration dampers/detuners are explained using labelled diagrams, indicating construction features and operating principles Completed |
Evidence:
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Calibration is applied to identify wear patterns, limits and means of restoring working clearances and limits of pistons, liners, piston rings, bearings and crankshafts, sliding surfaces and interference fits of typical diesel engines Completed |
Evidence:
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Alignment and adjustment criteria of crankshafts, chain-drives, integral thrust bearings and crossheads are specified Completed |
Evidence:
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Crankshaft deflection measurements are prepared and evaluated, alignment diagrams are constructed, and realignment procedures including restoration of crankshaft shrink-fit slippage, are proposed Completed |
Evidence:
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Analyse scavenge and uptake fires, air-line, crankcase and gearbox explosions
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Operational and design factors contributing to waste heat unit fires are assessed Completed |
Evidence:
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Appropriate strategies for extinguishing/containing soot and hydrogen fires are selected Completed |
Evidence:
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Hazard reduction, inspection and isolation in service procedures are established Completed |
Evidence:
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Operational factors that may contribute to scavenge fires are identified and hazard reduction is planned Completed |
Evidence:
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Factors contributing to explosive mixtures are analysed and hazard reduction procedures for starting airlines are proposed and evaluated Completed |
Evidence:
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Inspection and test intervals are specified Completed |
Evidence:
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Causes of gearbox and crankcase explosions in propulsion and auxiliary drives are revised Completed |
Evidence:
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How risks may be minimised in service by hazard reduction is specified Completed |
Evidence:
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Procedures to be implemented for hazardous atmosphere warning in oil and dual-fuel engines are evaluated Completed |
Evidence:
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Relevant diagrams are used to identify operating principles of oil-mist detectors, crankcase breathers and explosion relief doors Completed |
Evidence:
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Maintenance strategies are developed and criteria for piston rod scraper box inspection and maintenance intervals are specified Completed |
Evidence:
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Plan safe working practices associated with diesel engine maintenance, operation and repair
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Safe working practices for isolating main and propulsion diesels under all operational contingencies are planned Completed |
Evidence:
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Safe working practices for machinery in enclosed spaces are planned Completed |
Evidence:
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Hazard reduction procedures for safe working with flammable liquids under pressure, chemicals, acids and hydrocarbons associated with engine overhaul and maintenance are planned Completed |
Evidence:
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Safe working strategies for diesel engine maintenance are planned according to manufacturer instruction manuals and product data safety sheets Completed |
Evidence:
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Interpret combustion diagnostic equipment faults and relate to fuel injection and pressure charging systems
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Two- and four-stroke theoretical cycle diagrams are produced and discrepancies with results recorded by diagnostic tools are accounted for Completed |
Evidence:
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Combustion faults related to fuel injection and pressure charging systems are diagnosed, corrective action is specified and service values with trials or test bed figures are analysed Completed |
Evidence:
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Methods of pressure charging diesel engines are evaluated, efficiencies are determined from records, efficiency losses are accounted for and means of correction are identified Completed |
Evidence:
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Maintenance and emergency procedures for turbochargers and charge air coolers are planned Completed |
Evidence:
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Design features of turbochargers and charge air coolers are evaluated Completed |
Evidence:
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Relevant diagrams are applied to evaluate diesel scavenging systems, under normal and emergency operation modes Completed |
Evidence:
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