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Evidence Guide: MARL6012A - Demonstrate intermediate 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

 

MARL6012A - Demonstrate intermediate knowledge of marine auxiliary machinery and systems

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

Determine responsibilities of an Engineer Class 2 in relation to auxiliary machinery of a vessel

  1. Commonwealth, state/territory and local legislation and regulations, which relate to auxiliary machines and systems in terms of safety, repairs and pollution, including implementation, is identified
  2. Safe operating practices for all steam plant are examined and standing orders as to their operation are prepared or modified
  3. Procedures for establishing engine room staff who are fully conversant with safe practices for operation and maintenance of auxiliary machines and systems are outlined
Commonwealth, state/territory and local legislation and regulations, which relate to auxiliary machines and systems in terms of safety, repairs and pollution, including implementation, is identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Safe operating practices for all steam plant are examined and standing orders as to their operation are prepared or modified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedures for establishing engine room staff who are fully conversant with safe practices for operation and maintenance of auxiliary machines and systems are outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess material properties and their application to engine room situations

  1. Properties of materials and how these can be determined by simple tests are explained
  2. Common methods for non-destructive testing (NDT) and their application to auxiliary machinery and components are outlined
  3. Common non-metallic materials used in the marine industry are assessed and their properties, applications and restrictions on usage are explained
  4. Common metallic materials used in marine industry, their applications, failure mechanisms and methods to limit or reduce failures are assessed
Properties of materials and how these can be determined by simple tests are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Common methods for non-destructive testing (NDT) and their application to auxiliary machinery and components are outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Common non-metallic materials used in the marine industry are assessed and their properties, applications and restrictions on usage are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Common metallic materials used in marine industry, their applications, failure mechanisms and methods to limit or reduce failures are assessed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Outline procedure for sampling and carrying out onboard and laboratory tests on fuel and lubricants

  1. Importance and implications of continual monitoring of quality of fuel oils and lubricants in efficient operation of machinery are explained
  2. Procedures for onboard testing for fuels and lubricants are clarified
  3. Laboratory tests that may be conducted on fuels and lubricants and how results can be interpreted and utilised as part of a maintenance program are detailed
Importance and implications of continual monitoring of quality of fuel oils and lubricants in efficient operation of machinery are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedures for onboard testing for fuels and lubricants are clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Laboratory tests that may be conducted on fuels and lubricants and how results can be interpreted and utilised as part of a maintenance program are detailed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Explain pre-treatment of residual fuel and servicing of contaminated fuel and lubricants

  1. Operation of centrifugal separators is outlined and factors that affect optimum separation are analysed
  2. Procedures for dealing with contamination of oils by water, fuel or solid debris including recognition of dangerous levels and possible consequences, are clarified
  3. Symptoms, causes, effects and methods of treatment of oils that have become infected by bacteria are identified
  4. Function and operation for onboard fuel blender and alternative fuel treatments are explained
Operation of centrifugal separators is outlined and factors that affect optimum separation are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedures for dealing with contamination of oils by water, fuel or solid debris including recognition of dangerous levels and possible consequences, are clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Symptoms, causes, effects and methods of treatment of oils that have become infected by bacteria are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Function and operation for onboard fuel blender and alternative fuel treatments are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess operational problems with pumps and pumping systems handling sea water

  1. Procedure for evaluating pump or pumping system, including heat exchangers and methods of locating cause of problems that affect output and performance, is clarified
  2. Operation of a self-priming system used on bilge, ballast or cargo pumping arrangements is explained
  3. Different types of distillation plants used on ships are compared and contrasted taking into account operation, performance, problems and applications
  4. Main reasons for corrosion in sea water systems and regions most affected are explained
  5. Operation of corrosion prevention systems fitted to pumping systems is assessed
Procedure for evaluating pump or pumping system, including heat exchangers and methods of locating cause of problems that affect output and performance, is clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation of a self-priming system used on bilge, ballast or cargo pumping arrangements is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Different types of distillation plants used on ships are compared and contrasted taking into account operation, performance, problems and applications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Main reasons for corrosion in sea water systems and regions most affected are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation of corrosion prevention systems fitted to pumping systems is assessed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply fault-finding procedures for air compressors and compressed air systems

  1. Effects of common faults on operation of single and multi stage compressors are interpreted
  2. Reasons for and effects of high levels of oil or water in compressed air are explained
  3. Effects of operating air compressors on synthetic lubricating oils are explained with regards to carbon formation and water contamination of the oil
  4. Procedures for inspecting and maintaining air receivers and associated fittings are clarified
Effects of common faults on operation of single and multi stage compressors are interpreted

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Reasons for and effects of high levels of oil or water in compressed air are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Effects of operating air compressors on synthetic lubricating oils are explained with regards to carbon formation and water contamination of the oil

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedures for inspecting and maintaining air receivers and associated fittings are clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Outline construction, installation and operation of steering gears, stabilisers and bow thrusters

  1. Construction, installation and operation of hydraulic steering gear is explained
  2. Construction and operation of stabilisers is explained
  3. Construction and operation of bow thrusters is explained
  4. Normal alarms and safety devices fitted to steering gears for all classes of vessel are identified
  5. Auto and manual changeover procedures are analysed in the event of faults occurring in a steering gear
  6. Oil changing and air purging procedures for a steering gear are clarified
  7. Fault finding procedures for steering gear are clarified
  8. Procedures for change over to alternative systems of power or control of steering gear are clarified
Construction, installation and operation of hydraulic steering gear is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construction and operation of stabilisers is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construction and operation of bow thrusters is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Normal alarms and safety devices fitted to steering gears for all classes of vessel are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Auto and manual changeover procedures are analysed in the event of faults occurring in a steering gear

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Oil changing and air purging procedures for a steering gear are clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fault finding procedures for steering gear are clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedures for change over to alternative systems of power or control of steering gear are clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess common faults in refrigeration and air conditioning systems

  1. Symptoms, effects and remedial action for common faults in refrigeration and air conditioning systems are assessed
  2. Pumping down, leak test, gas charge and oil charge procedures are clarified
  3. Functions and operation of all components of refrigeration and air conditioning plant are analysed
  4. Correct procedures for recovery of refrigerants from refrigeration systems are implemented
Symptoms, effects and remedial action for common faults in refrigeration and air conditioning systems are assessed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pumping down, leak test, gas charge and oil charge procedures are clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Functions and operation of all components of refrigeration and air conditioning plant are analysed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Correct procedures for recovery of refrigerants from refrigeration systems are implemented

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Outline pollution prevention regulations and operation of equipment used to handle oily bilge, sewage and other waste substances

  1. International Convention for the Prevention of Pollution from Ships (MARPOL) regulations are identified and their implications for marine engineers and ship operators are explained
  2. Operation of modern oily water separators, oil content monitors and how they comply with MARPOL regulations are explained
  3. Operation of typical sewage plants and regulations controlling their usage are explained
  4. Operation of incinerators, material that may legally be burned and monitoring devices is explained
International Convention for the Prevention of Pollution from Ships (MARPOL) regulations are identified and their implications for marine engineers and ship operators are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation of modern oily water separators, oil content monitors and how they comply with MARPOL regulations are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation of typical sewage plants and regulations controlling their usage are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operation of incinerators, material that may legally be burned and monitoring devices is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Explain basic operation of marine gas turbines

  1. Basic flow of air and gas through a simple cycle marine gas turbine is outlined
  2. Materials and construction of compressor, combustion system and turbine in a single and two-shaft design turbine are outlined
  3. Basic controls required for control and protection of plant are outlined
  4. Accessories necessary for safe operation are identified
Basic flow of air and gas through a simple cycle marine gas turbine is outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Materials and construction of compressor, combustion system and turbine in a single and two-shaft design turbine are outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Basic controls required for control and protection of plant are outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Accessories necessary for safe operation are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Explain shafting arrangement of vessel

  1. Different shafting arrangements found on vessels from main engine to propeller are outlined
  2. Performance of different couplings and coupling bolts is assessed
  3. Arrangement of a stern tube is completed
  4. Procedure to mount and unmount propeller on tail shaft is clarified
  5. Different shaft bearings, couplings, sealing and lubrication arrangements of transmission system are identified
Different shafting arrangements found on vessels from main engine to propeller are outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Performance of different couplings and coupling bolts is assessed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Arrangement of a stern tube is completed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedure to mount and unmount propeller on tail shaft is clarified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Different shaft bearings, couplings, sealing and lubrication arrangements of transmission system are identified

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Explain types, operation, and maintenance requirements of steam turbine machinery found in larger vessels

  1. Types of steam turbines, their location, and typical operating conditions of temperature and pressure are explained
  2. Common operational problems associated with steam turbine plants, symptoms and effects of these problems and possible remedies are outlined
  3. Process of warming-through and shutting down turbine plant is explained
  4. Maintenance requirements for achieving optimum performance of an auxiliary steam turbine plant are outlined
Types of steam turbines, their location, and typical operating conditions of temperature and pressure are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Common operational problems associated with steam turbine plants, symptoms and effects of these problems and possible remedies are outlined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Process of warming-through and shutting down turbine plant is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintenance requirements for achieving optimum performance of an auxiliary steam turbine plant are outlined

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 intermediate knowledge of marine auxiliary machinery and systems can be demonstrated

technical reference library with current publications on marine auxiliary machinery and systems

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 intermediate 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 operating 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 numerical and graphical information related to starting up and shutting down marine auxiliary machines on commercial vessels

Identify and suggest ways of rectifying 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 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:

Corrosion causes and prevention

Fuels and basic principles of fuel systems

MARPOL

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

Non-destructive testing procedures and standards

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

Pollution prevention regulations

Principles and procedures of machinery lubrication

Procedures for carrying out the start up and shut down of main and auxiliary machinery and associated systems to ensure compliance with company and survey requirements and regulations

Properties of metallic and non-metallic materials

Purpose and content of safety data sheets/material safety data sheets

Responsibilities of an Engineer Class 2 in relation to auxiliary machinery of a vessel

Safety, environmental and hazard control precautions and procedures relevant to start up and shut down of marine auxiliary machinery and associated systems

Types of auxiliary machinery and components

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 machines and systems may include:

Boiler

Cargo handling equipment

Compressors

Deck machinery

Diesel generator

Evaporators

Pumps

Refrigerating installation

Separators

Testing may include:

Density

Fuel in lubricating oil

Pour point

Viscosity

Water contamination

Corrosion prevention systems may include:

Anodes

Chemical injection

Impressed current

Marine growth inhibiting systems

Special coatings

Common faults may include:

Coolers

Filters

Rings

Valves

Components of refrigeration and air conditioning plant may include:

All fittings

Safety devices

Accessories may include:

Accessory gear

Lube oil:

coolers

pump

filter

Starting device

Arrangement of a stern tube may include:

Lubrication circuit

Shaft sealing

Tail shaft bearing