MARL6011A - Demonstrate intermediate knowledge of marine auxiliary boilers
Assessor Resource
MARL6011A Demonstrate intermediate knowledge of marine auxiliary boilers
Assessment tool
Version 1.0 Issue Date: April 2024
This unit applies to the work of a Marine Engineer Class 2 on commercial vessels greater than 3000 kW and forms part of the requirements for the Certificate of Competency Marine Engineer Class 2 issued by the Australian Maritime Safety Authority (AMSA).
This unit involves the skills and knowledge required to operate and maintain marine auxiliary boilers on a commercial vessel. This includes analysing the responsibilities of an Engineer Class 2 in relation to auxiliary boiler and steam plant of a vessel, design of marine auxiliary boilers, operation of thermal fluid heating plants, layout of marine stem systems and components, and procedures for inspecting marine auxiliary boilers and associated plant.
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 intermediate knowledge of marine auxiliary boilers can be demonstrated
diagrams, specifications and other information related to marine auxiliary boilers
technical reference library with current publications on basic marine auxiliary boilers
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 intermediate knowledge of marine auxiliary boilers
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 related to marine auxiliary boilers
Assess own work outcomes and maintain knowledge of current codes, standards, regulations and industry practices
Explain intermediate operation of marine auxiliary boilers
Identify and apply relevant solutions for addressing problems associated with marine auxiliary boilers
Identify and interpret diagnostic information, and perform mathematical calculations related to operating, maintaining and repairing marine auxiliary boilers
Identify methods, procedures and materials needed for operating, maintaining and repairing marine auxiliary boilers
Impart knowledge and ideas through verbal, written and visual means
Read and interpret manuals, technical specifications, safety data sheets/material safety data sheets and manufacturer guides related to operating, maintaining and repairing marine auxiliary boilers
Required Knowledge:
Basic principles of operation of boilers and steam systems
Combustion in boilers and related safety procedures, including importance of purging a boiler and other safety precautions taken when firing a boiler
Common boiler defects and repair procedures
Fittings mounted on boilers
Fuel oil system for an auxiliary boiler
Hazards associated with running boiler plant
Marine boiler inspection procedures
Operating principles relating to steam generation in fired and unfired boilers
Principles of boiler operation in normal and emergency situations
Procedures for maintaining water level in boilers
Purpose of alarms and shut downs in marine boilers
Safety valves
Treatment, sampling and testing of feed and boiler water
Types of auxiliary boilers, and typical operating pressures and temperatures
Typical feed systems for marine boilers
Work health and safety (WHS)/occupational health and safety (OHS) legislation, policies and procedures
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.
Marine boilers and steam plant may include:
Condensors
Economiser
Feed pumps
Fired
High-pressure
Low pressure
Medium pressure
Steam – steam generators
Unfired
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
Commonwealth, state/territory and local legislation and regulations that relate to marine boilers and steam plant in terms of safety, repairs and pollution, including implementation, is identified
Safe operating practices for all steam plant are examined and standing orders as to their operation are prepared or modified
Procedure for establishing engine room staff who are fully conversant with safe practices for boiler operation is outlined
Typical boiler types illustrating cross section, attachments and location of all fittings, mountings, scantlings and method of achieving circulation are examined
Material requirements for boiler components are identified
Construction of different types of boilers is analysed
Different gauge glass types are compared
Typical thermal fluid heating plant is explained and advantages and limitations of the system are identified
Locations and functions of all fittings and safety devices in a typical thermal fluid system are explained
Properties of thermal fluid, effects of contamination and methods of testing fluid are analysed
Thermal fluid heating is compared to conventional steam plant
Typical steam system layout showing location of all components on feed and heating side is detailed
Material requirements for steam system components are identified
Reasons for operating plant and systems at nominated temperatures and pressures, and effects of departing from these parameters are explained
Symptoms of faults in steam traps, hot wells, de-aerators, condensers, evaporators and requirements for contamination prevention between systems, are analysed
Procedure for shutting down, isolating and opening up a boiler for inspection or during an emergency is clarified
Possible defects that may occur in a boiler, fire and water side, their location and effects are analysed
Repair procedures commonly employed for damaged boilers are examined and limitations of such repairs are explained
Procedures for leak detecting in boilers and steam equipment are clarified and remedial actions are explained
Mechanism of economiser fires are analysed
Procedure for detecting economiser fires, actions for controlling after occurrence and preventative measures are clarified
Common types of boiler safety valves are analysed and sketched, and how they are classified in terms of valve lift is explained
Materials used in safety valves are identified and operational problems that can occur are analysed
Procedure for setting valve lift pressure is established and precautions necessary when testing valve on fired and non-fired boilers are examined
Defects that may be found when dismantling a safety valve for survey are analysed
Causes of scaling and corrosion of water side of a boiler and how these can be minimised are analysed
Acceptable operational range and effects of contamination on boiler chemical reserves are identified
Reliability of boiler water test results are analysed in relation to sampling procedure, testing equipment and shelving of test chemicals
Different tests carried out on boiler water are explained and implications of out-of-range results are interpreted
Use of different chemicals to treat and condition boiler water is assessed
Procedure to be adopted when boiler is severely contaminated from different sources is outlined
Boiler fuel system, its components and maintenance procedure are detailed
Combustion process, its monitoring system and requirements for good combustion are analysed
Different types of burners are compared and contrasted and how atomisation is achieved is explained
Operation of a burner management system that incorporates pressure and level control is explained
Protection devices, alarms and shut downs, found on firing system are identified and their method of operation is analysed
Forms
Assessment Cover Sheet
MARL6011A - Demonstrate intermediate knowledge of marine auxiliary boilers
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Result: Competent Not yet competent
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Assessment Record Sheet
MARL6011A - Demonstrate intermediate knowledge of marine auxiliary boilers
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Assessment task 1: [title] Result: Competent Not yet competent
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Overall assessment result: Competent Not yet competent