MARL6018A - Demonstrate advanced knowledge of marine auxiliary machinery and systems
Assessor Resource
MARL6018A Demonstrate advanced knowledge of marine auxiliary machinery and systems
Assessment tool
Version 1.0 Issue Date: April 2024
This unit applies to the work of a Marine Engineer Class 1and forms part of the requirements for the Certificate of Competency Marine Engineer Class 1 issued by the Australian Maritime Safety Authority (AMSA).
This unit involves the skills and knowledge required to operate and maintain auxiliary machinery and associated systems on board a commercial vessel. This includes evaluating ship systems, assessing lubricants and lubricant contamination, and analysing the operation of major items of marine auxiliary machinery.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Prerequisites
Not applicable.
Employability Skills
This unit contains employability skills.
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.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, the required skills and knowledge, the range statement and the Assessment Guidelines for the Training Package.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the Elements, Performance Criteria, Required Skills, Required Knowledge and include:
providing accurate and reliable information
providing appropriate level of detail in responses.
Context of and specific resources for assessment
Performance is demonstrated consistently over time and in a suitable range of contexts.
Resources for assessment include access to:
industry-approved marine operations site where advanced knowledge of marine auxiliary machinery and systems can be demonstrated
technical reference library with current publications on auxiliary machinery
tools, equipment and personal protective equipment currently used in industry
relevant regulatory and equipment documentation that impacts on work activities
range of relevant exercises, case studies and/or other simulated practical and knowledge assessments
appropriate range of relevant operational situations in the workplace.
In both real and simulated environments, access is required to:
relevant and appropriate materials and equipment
applicable documentation including workplace procedures, regulations, codes of practice and operation manuals.
A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate to this unit:
direct observation of the candidate demonstrating advanced knowledge of marine auxiliary machinery and systems
direct observation of the candidate applying relevant WHS/OHS requirements and work practices.
Guidance information for assessment
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended.
In all cases where practical assessment is used it should be combined with targeted questioning to assess Required Knowledge.
Assessment processes and techniques must be appropriate to the language and literacy requirements of the work being performed and the capacity of the candidate.
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.
Required Skills:
Access information and sketch diagrams to interpret and explain testing requirements related to the operation of marine auxiliary machines
Assess own work outcomes and maintain knowledge of current codes, standards, regulations and industry practices
Explain principles of marine auxiliary machines
Identify and interpret complex numerical and graphical information related to operating, maintaining and repairing marine auxiliary machines on commercial vessels
Identify and rectify faults and malfunctions in marine auxiliary machines on commercial vessels
Identify methods, procedures and materials needed for operating, maintaining and repairing marine auxiliary machines on commercial vessels
Impart knowledge and ideas through verbal, written and visual means
Read and interpret complex written information related to the operation, performance and maintenance of marine auxiliary machines, including machinery specifications, machinery design drawings, machine drawings, operational manuals, specifications and electrical and control circuit diagrams
Required Knowledge:
Fuel and lubricating oil contaminants
Fuels and basic principles of fuel systems
Inert gas systems
Lubrication
Marine air compressors
Marine transmission systems
Materials failure
Nature and causes of typical start up and shut down malfunctions of main and auxiliary machinery and associated systems, and available methods for their detection and rectification
Operational characteristics and performance specifications for the different types of auxiliary machinery and associated systems usually found on a commercial vessel, including pumps, air compressors, steering gears, heat exchangers and evaporators
Plant efficiency
Principles and procedures of machinery lubrication
Procedures for carrying out start up and shut down of main and auxiliary machinery and associated systems to ensure compliance with company and survey requirements and regulations
Purpose and content of safety data sheets/material safety data sheets
Safety, environmental and hazard control precautions and procedures relevant to start up and shut down of marine auxiliary machinery and associated systems
Shafting systems, bearings, couplings, clutches and shaft seals that form the transmission system
Ship systems
Shipboard refrigeration and air conditioning systems
Steering gears and controllable pitch propeller systems
Types of auxiliary machinery and components
Turbo alternators
Work health and safety (WHS)/occupational health and safety (OHS) legislation and policies
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below.
Auxiliary machinery may include:
Boiler
Compressors
Deck machinery
Diesel generator
Evaporators
Pumps
Refrigerating installation
Separators
Turbo alternators
Constraints may include:
Class requirements
Location
Reliability
Time
Factors influencing good lubrication may include:
Alignment
Condition of bearing surfaces
Flow rate
Load
Purity of lubricant
Running clearances
Speed
Temperature
Viscosity
Contaminants may include:
Air entrainment
Incompatible fluids
Moisture
Particulate
Protections may include:
Arial displacement
Condenser condition
Expansion
High air temperature
High oil temperature
Loss of vacuum
Low oil pressure
Overspeed:
mechanical
electrical
Pressure
Steam
Steam condition
Temperature
Vibration
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
Conventional systems are analysed from ship layout drawings and performance data
Viability and potential problems of new systems and advanced specialist vessels are evaluated
Suitable modifications are devised for systems that are not performing satisfactorily or recommendations are made on alternative systems
Manufacturer claims about new products and their suitability for use in existing conditions are evaluated
Performance of different pumps and heat exchangers is assessed and their applications are compared for different purposes
Performance of shipboard pollution control equipment is evaluated
Type of materials failure that impact on marine auxiliary components is analysed
Type and properties of metallic and non-metallic materials used in the marine field are evaluated
Ideal properties of materials required for components of auxiliary machinery are analysed
Repair methods used for auxiliary machines and constraints on engineering staff engaged in repairing auxiliary machinery are analysed
Type and purpose of destructive and non-destructive testing of materials are compared
Mechanism of lubrication between two surfaces is explained
Factors influencing good lubrication are identified
Different types of lubrication applied to marine machinery are compared and contrasted
Relative advantages of synthetic lubricants and mineral oils are assessed
Methods of assuring quality of lubrication are identified
Symptoms, effects and possible remedial actions for different types of contaminants in fuel are evaluated
Types of contaminants that affect lubricants and remedial actions required for different forms of contamination are identified
Products used to counter poor quality fuels and to improve properties of lubricating oils are assessed
Safety measures to be applied when fuels are found to be outside class requirements are identified
Different types and methods of checking alignment and wear of shafting, shaft bearings and thrust blocks are identified
Assembly and dismantling procedures for muff and flange type couplings are compared and contrasted
Different types, methods of operation and maintenance requirements of clutches are compared
Different types, maintenance requirements and operation of stern tubes, tail shaft seals and stern bearing lubrication systems under adverse conditions are evaluated
Regulatory requirements for steering gears of different types of vessels are identified
Operation of various types of steering gear arrangements are analysed
Operation and performance of controllable pitch propeller (CPP) and fixed pitch systems are compared and contrasted
Modes of operation of CPP systems are explained
Effects and countermeasures, in the event of failure in the control system or seals of a CPP system, are identified
Operation and performance of different marine transmission systems are compared and contrasted
Procedure for inspecting a set of reduction gears from a propulsion system is analysed
Types and locations of faults that may occur in gearing systems and repair options available are analysed
Procedures for assessing performance of reciprocating and rotary compressors by output and condition monitoring techniques are explained
Effects of multi staging, inter-cooling and clearance volume are explained
Importance of all fittings and safety devices in compressed air system is explained
Full automatic operation of starting air compressors is explained
Principle of air conditioning systems is explained and how ideal conditions are achieved in conditioned space is analysed
Automatic operation of a typical marine provision fridge plant capable of maintaining different temperatures in different cold rooms is analysed
Hazards associated with CFCs and HCFCs, and regulations controlling their production and usage are analysed
Procedure for evacuation and recovery of refrigerants from the system is outlined
Location and functions of all components, fittings and safety devices in an inert gas system are identified
Operation of a typical inert gas system found on crude oil tankers is analysed
Operation and maintenance requirements of inert gas systems are explained
Operating parameters and associated protections for turbo alternator systems are analysed
Procedure for assessing efficiency of auxiliary steam turbines is explained by analysing measured parameters
Methods of steam and air leak detection in turbo alternator systems are compared
Effects of fouling of condenser and changes in sea water temperature in turbo alternator systems are analysed
Forms
Assessment Cover Sheet
MARL6018A - Demonstrate advanced knowledge of marine auxiliary machinery and systems
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Assessment Record Sheet
MARL6018A - Demonstrate advanced knowledge of marine auxiliary machinery and systems
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