Assessor Resource

AURETR035
Apply knowledge of petrol and diesel engine operation

Assessment tool

Version 1.0
Issue Date: March 2024


This unit describes the performance outcomes required to apply knowledge of petrol and diesel engine components and systems, as well as of the principles of engine operation, during the testing and repair of basic electrical circuits in vehicles, vessels and machinery.

It applies to those working in the automotive service and repair industry. The engines include those in agricultural machinery, heavy commercial vehicles, light vehicles, vessels, mobile plant machinery, motorcycles or outdoor power equipment.

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Identify relevant information relating to petrol and diesel engine operation in work activities

1.1 Functions of engine components are identified during testing and repair activities

1.2 Functions of engine-related electrical systems are identified during testing and repair activities

2. Apply knowledge of petrol and diesel engine operation in work activities

2.1 Effect of electrical system on engine performance is identified during testing and repair activities

2.2 Knowledge is applied of the relationship that a four-stroke cycle petrol engine has with vehicle ignition, starting, air and fuel delivery and cooling systems

2.3 Knowledge is applied of the relationship that a diesel engine has with vehicle ignition, starting, air and fuel delivery and cooling systems

3. Evaluate knowledge of petrol and diesel engine operation

3.1 Knowledge is regularly checked with colleagues and supervisor to ensure currency and accuracy

3.2 Knowledge is updated as required to complement own work role

Before competency can be determined, individuals must demonstrate they can perform the following according to the standard defined in the unit’s elements and performance criteria, range of conditions and foundation skills:

apply knowledge of petrol and diesel engine operation during the testing and repair of three different vehicle, vessel or machinery electrical systems

evaluate and expand knowledge of petrol and diesel engine operation, including demonstrating knowledge of one of the following:

a new automotive petrol and diesel engine testing procedure

a new automotive petrol and diesel engine repair procedure

a new automotive petrol and diesel engine technology.

Individuals must be able to demonstrate knowledge of:

types and location of sources of technical information relevant to automotive electrical systems, including:

workplace service information

automotive engine mechanical texts

vehicle workshop manuals

service bulletins

technical articles

automotive textbooks

classifications of engines, including:

internal combustion

reciprocating and rotary engines

spark ignition engines

compression ignition engines

engine cylinder arrangements

engine configurations, including:

inline engines, V type engines and slant cylinder engines

opposed cylinder engines

camshaft and valve locations, including:

overhead cam (OHC)

overhead valve (OHV)

engine operating principles, including:

two-stroke cycles

four-stroke cycles

engine measurement and performance ratings

operating performance of engines, including:

petrol engines

diesel engines

petrol and diesel engine operation, including:

engine construction

engine types and configuration

two-stroke and four-stroke

cycles of engine operation, including:

intake stroke

compression stroke

power stroke

exhaust stroke

firing orders

ignition types, including:

spark

compression

engine mounting location, including:

front longitudinal

front transverse

mid transverse

measurement and performance, including:

bore and stroke

displacement

compression ratio

engine efficiency

torque versus horsepower

engine components, including:

top of engine, 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

front of engine, including:

crankshaft

crankshaft timing pulley

crankshaft pulley and balancer

rear of engine, including:

flywheel

starter ring gear

bottom of engine, including:

engine block

crankshaft

crankshaft balance weights

crankshaft main bearing journals

pistons

connecting rods

relationships between electrical systems and engine performance, including:

ignition system and engine power and torque, including:

ignition timing

combustion stroke pressure

diesel injection system and engine power and torque, including:

injection timing

combustion stroke pressure

starter motor system, including:

current draw of starting system of high compression engines

types of batteries and starter motors for petrol and diesel engines

wiring requirements of starter motor systems for petrol and diesel engines

charging system, including system requirements for low and high speed engines.

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to having applied knowledge of petrol and diesel engine systems and components to the vehicles and machinery that they have worked on, e.g. work orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

technical information relating to petrol and diesel engines

automotive tools and electrical test equipment relating to the system being tested or repaired

three different vehicles, vessels or machinery with functional electrical systems.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Identify relevant information relating to petrol and diesel engine operation in work activities

1.1 Functions of engine components are identified during testing and repair activities

1.2 Functions of engine-related electrical systems are identified during testing and repair activities

2. Apply knowledge of petrol and diesel engine operation in work activities

2.1 Effect of electrical system on engine performance is identified during testing and repair activities

2.2 Knowledge is applied of the relationship that a four-stroke cycle petrol engine has with vehicle ignition, starting, air and fuel delivery and cooling systems

2.3 Knowledge is applied of the relationship that a diesel engine has with vehicle ignition, starting, air and fuel delivery and cooling systems

3. Evaluate knowledge of petrol and diesel engine operation

3.1 Knowledge is regularly checked with colleagues and supervisor to ensure currency and accuracy

3.2 Knowledge is updated as required to complement own work role

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Engine-related electrical systemsmust include:

ignition system

charging system

starting system

engine management system.

Before competency can be determined, individuals must demonstrate they can perform the following according to the standard defined in the unit’s elements and performance criteria, range of conditions and foundation skills:

apply knowledge of petrol and diesel engine operation during the testing and repair of three different vehicle, vessel or machinery electrical systems

evaluate and expand knowledge of petrol and diesel engine operation, including demonstrating knowledge of one of the following:

a new automotive petrol and diesel engine testing procedure

a new automotive petrol and diesel engine repair procedure

a new automotive petrol and diesel engine technology.

Individuals must be able to demonstrate knowledge of:

types and location of sources of technical information relevant to automotive electrical systems, including:

workplace service information

automotive engine mechanical texts

vehicle workshop manuals

service bulletins

technical articles

automotive textbooks

classifications of engines, including:

internal combustion

reciprocating and rotary engines

spark ignition engines

compression ignition engines

engine cylinder arrangements

engine configurations, including:

inline engines, V type engines and slant cylinder engines

opposed cylinder engines

camshaft and valve locations, including:

overhead cam (OHC)

overhead valve (OHV)

engine operating principles, including:

two-stroke cycles

four-stroke cycles

engine measurement and performance ratings

operating performance of engines, including:

petrol engines

diesel engines

petrol and diesel engine operation, including:

engine construction

engine types and configuration

two-stroke and four-stroke

cycles of engine operation, including:

intake stroke

compression stroke

power stroke

exhaust stroke

firing orders

ignition types, including:

spark

compression

engine mounting location, including:

front longitudinal

front transverse

mid transverse

measurement and performance, including:

bore and stroke

displacement

compression ratio

engine efficiency

torque versus horsepower

engine components, including:

top of engine, 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

front of engine, including:

crankshaft

crankshaft timing pulley

crankshaft pulley and balancer

rear of engine, including:

flywheel

starter ring gear

bottom of engine, including:

engine block

crankshaft

crankshaft balance weights

crankshaft main bearing journals

pistons

connecting rods

relationships between electrical systems and engine performance, including:

ignition system and engine power and torque, including:

ignition timing

combustion stroke pressure

diesel injection system and engine power and torque, including:

injection timing

combustion stroke pressure

starter motor system, including:

current draw of starting system of high compression engines

types of batteries and starter motors for petrol and diesel engines

wiring requirements of starter motor systems for petrol and diesel engines

charging system, including system requirements for low and high speed engines.

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to having applied knowledge of petrol and diesel engine systems and components to the vehicles and machinery that they have worked on, e.g. work orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

technical information relating to petrol and diesel engines

automotive tools and electrical test equipment relating to the system being tested or repaired

three different vehicles, vessels or machinery with functional electrical systems.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Functions of engine components are identified during testing and repair activities 
Functions of engine-related electrical systems are identified during testing and repair activities 
Effect of electrical system on engine performance is identified during testing and repair activities 
Knowledge is applied of the relationship that a four-stroke cycle petrol engine has with vehicle ignition, starting, air and fuel delivery and cooling systems 
Knowledge is applied of the relationship that a diesel engine has with vehicle ignition, starting, air and fuel delivery and cooling systems 
Knowledge is regularly checked with colleagues and supervisor to ensure currency and accuracy 
Knowledge is updated as required to complement own work role 
Functions of engine components are identified during testing and repair activities 
Functions of engine-related electrical systems are identified during testing and repair activities 
Effect of electrical system on engine performance is identified during testing and repair activities 
Knowledge is applied of the relationship that a four-stroke cycle petrol engine has with vehicle ignition, starting, air and fuel delivery and cooling systems 
Knowledge is applied of the relationship that a diesel engine has with vehicle ignition, starting, air and fuel delivery and cooling systems 
Knowledge is regularly checked with colleagues and supervisor to ensure currency and accuracy 
Knowledge is updated as required to complement own work role 

Forms

Assessment Cover Sheet

AURETR035 - Apply knowledge of petrol and diesel engine operation
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

AURETR035 - Apply knowledge of petrol and diesel engine operation

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: