MEM27020 — Apply knowledge of large combustion engine operations to service and maintenance tasks

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What an assessment for MEM27020 must cover

32 assessable components: 4 elements (17 performance criteria), 5 performance evidence and 10 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Prepare for service and maintenance task

1.1Follow standard operating procedures (SOPs)
1.2Comply with work health and safety (WHS) requirements at all times
1.3Use appropriate personal protective equipment (PPE) in accordance with SOPs
1.4Identify job requirements from specifications, job sheets or work instructions

2 Identify engine type and any special features for relevance to service and maintenance task

2.1Locate sources of information on equipment, engine, systems and components
2.2Identify engine type and configuration
2.3Locate and identify ignition, starting, air, fuel, coolant, exhaust and lubrication system components
2.4Identify engine components and sensors
2.5Identify fuel, oil and coolant specifications for engine and check against service records
2.6Identify environmental controls and features

3 Review equipment systems and accessories for relevance to service and maintenance task

3.1Identify equipment systems requiring engine power
3.2Identify other equipment systems and accessories
3.3Review operator records and service history for information relevant to engine service and maintenance
3.4Review manufacturer instructions for recommended engine operation
3.5Assess contamination risk to oil, fuel, coolant and lubrication systems

4 Confirm or adjust service and maintenance job requirement

4.1Review original job specification against results of checks of engine and equipment specifications, service and operator records
4.2Confirm job specification or recommend adjustments

Performance evidence

following manufacturer and work instructions, standard operating procedures (SOPs) and safe work practices
identifying appropriate sources of information on engine and equipment
carrying out classification of large combustion engines from observation, manufacturer instructions and manuals and workplace records, including classification of: - engine type - engine features - engine systems - engine components - fuel type and fuel system
assessing implications of engine and equipment service history and equipment operational records for service and maintenance tasks
recording and reporting service activities in accordance with SOPs.

Knowledge evidence

safe work practices and procedures and use of personal protective equipment (PPE)
classification of combustion engines, including: - internal and external combustion - reciprocating and rotary engines - two and four stroke cycles - spark ignition and compression ignition - turbines
engine features, including: - number and arrangement of cylinders - materials used for major components (e.g. steel, aluminium and ceramic)
fuel types and implications for engine operation and maintenance (e.g. petrol, diesel, diesel/gas, gas (natural gas, biogases and special gases))
engine location: - front, mid or rear engine - longitudinal or transverse engine
ignition system, components and firing order
operational parameters, including: - bore and stroke - displacement - compression ratio - efficiency - torque, horsepower and brake horsepower
cycles of engine operation: - intake stroke - compression stroke - power stroke - exhaust stroke
principles of operation of engine oil, fuel, lubrication and cooling systems, including: - function of filters - purpose of additives and correct proportions to be used - symptoms and effects of contamination, abnormal engine operation and extremes of weather
role and operation of major engine components, including: - timing belt or chain - camshaft timing pulley - camshaft single and dual - rocker arms and shafts - intake valves and springs - exhaust valves and springs - cylinder head - crankshaft and crankshaft pulleys, balancer and balance weights and bearing journals - flywheels - starter ring gear - engine block - pistons - connecting rods - exhaust system and components.

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing MEM27020

What does an assessment tool for MEM27020 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEM27020 needs to address all 32 unit components: 4 elements with 17 performance criteria, 5 performance evidence requirements, 10 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for MEM27020?

Auditori pulls the current release of MEM27020 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for MEM27020 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing MEM27020 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of MEM27020, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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