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Evidence Guide: MARL6018A - Demonstrate advanced knowledge of marine auxiliary machinery and systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

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

 

MARL6018A - Demonstrate advanced knowledge of marine auxiliary machinery and systems

What evidence can you provide to prove your understanding of each of the following citeria?

Evaluate ship systems

  1. Conventional systems are analysed from ship layout drawings and performance data
  2. Viability and potential problems of new systems and advanced specialist vessels are evaluated
  3. Suitable modifications are devised for systems that are not performing satisfactorily or recommendations are made on alternative systems
  4. Manufacturer claims about new products and their suitability for use in existing conditions are evaluated
  5. Performance of different pumps and heat exchangers is assessed and their applications are compared for different purposes
  6. Performance of shipboard pollution control equipment is evaluated
Conventional systems are analysed from ship layout drawings and performance data

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Viability and potential problems of new systems and advanced specialist vessels are evaluated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Suitable modifications are devised for systems that are not performing satisfactorily or recommendations are made on alternative systems

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Manufacturer claims about new products and their suitability for use in existing conditions are evaluated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Performance of different pumps and heat exchangers is assessed and their applications are compared for different purposes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Performance of shipboard pollution control equipment is evaluated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess materials failure

  1. Type of materials failure that impact on marine auxiliary components is analysed
  2. Type and properties of metallic and non-metallic materials used in the marine field are evaluated
  3. Ideal properties of materials required for components of auxiliary machinery are analysed
  4. Repair methods used for auxiliary machines and constraints on engineering staff engaged in repairing auxiliary machinery are analysed
  5. Type and purpose of destructive and non-destructive testing of materials are compared
Type of materials failure that impact on marine auxiliary components is analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Type and properties of metallic and non-metallic materials used in the marine field are evaluated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ideal properties of materials required for components of auxiliary machinery are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair methods used for auxiliary machines and constraints on engineering staff engaged in repairing auxiliary machinery are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Type and purpose of destructive and non-destructive testing of materials are compared

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse lubrication

  1. Mechanism of lubrication between two surfaces is explained
  2. Factors influencing good lubrication are identified
  3. Different types of lubrication applied to marine machinery are compared and contrasted
  4. Relative advantages of synthetic lubricants and mineral oils are assessed
  5. Methods of assuring quality of lubrication are identified
Mechanism of lubrication between two surfaces is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Factors influencing good lubrication are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Different types of lubrication applied to marine machinery are compared and contrasted

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relative advantages of synthetic lubricants and mineral oils are assessed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Methods of assuring quality of lubrication are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse fuel and lubricating oil contaminants

  1. Symptoms, effects and possible remedial actions for different types of contaminants in fuel are evaluated
  2. Types of contaminants that affect lubricants and remedial actions required for different forms of contamination are identified
  3. Products used to counter poor quality fuels and to improve properties of lubricating oils are assessed
  4. Safety measures to be applied when fuels are found to be outside class requirements are identified
Symptoms, effects and possible remedial actions for different types of contaminants in fuel are evaluated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Types of contaminants that affect lubricants and remedial actions required for different forms of contamination are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Products used to counter poor quality fuels and to improve properties of lubricating oils are assessed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Safety measures to be applied when fuels are found to be outside class requirements are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse shafting systems, bearings, couplings, clutches and shaft seals that form transmission system

  1. Different types and methods of checking alignment and wear of shafting, shaft bearings and thrust blocks are identified
  2. Assembly and dismantling procedures for muff and flange type couplings are compared and contrasted
  3. Different types, methods of operation and maintenance requirements of clutches are compared
  4. Different types, maintenance requirements and operation of stern tubes, tail shaft seals and stern bearing lubrication systems under adverse conditions are evaluated
Different types and methods of checking alignment and wear of shafting, shaft bearings and thrust blocks are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assembly and dismantling procedures for muff and flange type couplings are compared and contrasted

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Different types, methods of operation and maintenance requirements of clutches are compared

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Different types, maintenance requirements and operation of stern tubes, tail shaft seals and stern bearing lubrication systems under adverse conditions are evaluated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse steering gears and controllable pitch propeller systems

  1. Regulatory requirements for steering gears of different types of vessels are identified
  2. Operation of various types of steering gear arrangements are analysed
  3. Operation and performance of controllable pitch propeller (CPP) and fixed pitch systems are compared and contrasted
  4. Modes of operation of CPP systems are explained
  5. Effects and countermeasures, in the event of failure in the control system or seals of a CPP system, are identified
Regulatory requirements for steering gears of different types of vessels are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation of various types of steering gear arrangements are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation and performance of controllable pitch propeller (CPP) and fixed pitch systems are compared and contrasted

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Modes of operation of CPP systems are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Effects and countermeasures, in the event of failure in the control system or seals of a CPP system, are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse marine transmission systems

  1. Operation and performance of different marine transmission systems are compared and contrasted
  2. Procedure for inspecting a set of reduction gears from a propulsion system is analysed
  3. Types and locations of faults that may occur in gearing systems and repair options available are analysed
Operation and performance of different marine transmission systems are compared and contrasted

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedure for inspecting a set of reduction gears from a propulsion system is analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Types and locations of faults that may occur in gearing systems and repair options available are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analyse marine air compressors

  1. Procedures for assessing performance of reciprocating and rotary compressors by output and condition monitoring techniques are explained
  2. Effects of multi staging, inter-cooling and clearance volume are explained
  3. Importance of all fittings and safety devices in compressed air system is explained
  4. Full automatic operation of starting air compressors is explained
Procedures for assessing performance of reciprocating and rotary compressors by output and condition monitoring techniques are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Effects of multi staging, inter-cooling and clearance volume are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Importance of all fittings and safety devices in compressed air system is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Full automatic operation of starting air compressors is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Evaluate shipboard refrigeration and air conditioning systems

  1. Principle of air conditioning systems is explained and how ideal conditions are achieved in conditioned space is analysed
  2. Automatic operation of a typical marine provision fridge plant capable of maintaining different temperatures in different cold rooms is analysed
  3. Hazards associated with CFCs and HCFCs, and regulations controlling their production and usage are analysed
  4. Procedure for evacuation and recovery of refrigerants from the system is outlined
Principle of air conditioning systems is explained and how ideal conditions are achieved in conditioned space is analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Automatic operation of a typical marine provision fridge plant capable of maintaining different temperatures in different cold rooms is analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Hazards associated with CFCs and HCFCs, and regulations controlling their production and usage are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedure for evacuation and recovery of refrigerants from the system is outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Evaluate operation of inert gas systems on crude oil tankers

  1. Location and functions of all components, fittings and safety devices in an inert gas system are identified
  2. Operation of a typical inert gas system found on crude oil tankers is analysed
  3. Operation and maintenance requirements of inert gas systems are explained
Location and functions of all components, fittings and safety devices in an inert gas system are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation of a typical inert gas system found on crude oil tankers is analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation and maintenance requirements of inert gas systems are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Evaluate plant efficiency and relate problems in a turbo alternator

  1. Operating parameters and associated protections for turbo alternator systems are analysed
  2. Procedure for assessing efficiency of auxiliary steam turbines is explained by analysing measured parameters
  3. Methods of steam and air leak detection in turbo alternator systems are compared
  4. Effects of fouling of condenser and changes in sea water temperature in turbo alternator systems are analysed
Operating parameters and associated protections for turbo alternator systems are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedure for assessing efficiency of auxiliary steam turbines is explained by analysing measured parameters

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Methods of steam and air leak detection in turbo alternator systems are compared

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Effects of fouling of condenser and changes in sea water temperature in turbo alternator systems are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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.

Method of assessment

Practical assessment must occur in an:

appropriately simulated workplace environment and/or

appropriate range of situations in the workplace.

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.

Required Skills and Knowledge

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

Range Statement

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