Demonstrate intermediate knowledge of marine steam turbines and main boilers

Formats and tools

Unit Description
Reconstruct the unit from the xml and display it as an HTML page.
Assessment Tool
an assessor resource that builds a framework for writing an assessment tool
Assessment Template
generate a spreadsheet for marking this unit in a classroom environment. Put student names in the top row and check them off as they demonstrate competenece for each of the unit's elements and performance criteria.
Assessment Matrix
a slightly different format than the assessment template. A spreadsheet with unit names, elements and performance criteria in separate columns. Put assessment names in column headings to track which performance criteria each one covers. Good for ensuring that you've covered every one of the performance criteria with your assessment instrument (all assessement tools together).
Wiki Markup
mark up the unit in a wiki markup codes, ready to copy and paste into a wiki page. The output will work in most wikis but is designed to work particularly well as a Wikiversity learning project.
Evidence Guide
create an evidence guide for workplace assessment and RPL applicants
Competency Mapping Template
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners. A template for developing assessments for a unit, which will help you to create valid, fair and reliable assessments for the unit, ready to give to trainers and students
Observation Checklist
create an observation checklist for workplace assessment and RPL applicants. This is similar to the evidence guide above, but a little shorter and friendlier on your printer. You will also need to create a seperate Assessor Marking Guide for guidelines on gathering evidence and a list of key points for each activity observed using the unit's range statement, required skills and evidence required (see the unit's html page for details)

Self Assessment Survey
A form for students to assess thier current skill levels against each of the unit's performance criteria. Cut and paste into a web document or print and distribute in hard copy.
Moodle Outcomes
Create a csv file of the unit's performance criteria to import into a moodle course as outcomes, ready to associate with each of your assignments. Here's a quick 'how to' for importing these into moodle 2.x
Registered Training Organisations
Trying to find someone to train or assess you? This link lists all the RTOs that are currently registered to deliver MARL029, 'Demonstrate intermediate knowledge of marine steam turbines and main boilers'.
Google Links
links to google searches, with filtering in place to maximise the usefulness of the returned results
Reference books for 'Demonstrate intermediate knowledge of marine steam turbines and main boilers' on This online store has a huge range of books, pretty reasonable prices, free delivery in Australia *and* they give a small commission to for every purchase, so go nuts :)

Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.


Evaluate energy balance of steam turbine plant


Heat losses in a turbine and turbine system are analysed


An enthalpy/entropy diagram is used to show how steam properties change through a turbine


The affect air heaters and economisers have on turbine plant efficiency is explained


Practical methods of verifying energy losses are detailed


Explain construction and operation of feed system


Operation and components of the complete feed system are outlined


Construction, operating principles and maintenance requirements of a regenerative condenser are explained


Causes of loss of vacuum are identified


Construction and operation of air ejectors, vacuums and extraction pumps are explained


Construction and operation of gland condensers, low-pressure heaters, drain coolers and high-pressure heaters are explained


General arrangement and construction of turbo-feed pumps is outlined


Governor control is explained


Operating principles and construction details of de-aerators are explained


Explain construction, operation and repair of high-pressure water tube boilers


Operating principles of high-pressure boilers, including water and gas flow circulation are explained


Drum, internal fittings and support and expansion arrangements are outlined


Procedures for repairing a membrane wall furnace are clarified


Operating principles and construction methods of integral and external superheaters are explained


Construction and operation of economisers and air heaters is explained


Chemistry of combustion is explained


Typical burner register arrangements are outlined


Construction, operation and maintenance of boiler gauge glasses and safety valves is explained


Operation of boiler control and soot blowing system is detailed


Blow-down procedure for a high pressure boiler is prepared


Explain requirements for feed water treatment for high-pressure water tube boilers


How salts are precipitated and how metal is corroded in the boiler and feed system is explained and method of prevention is outlined


How oxygen is eliminated in high-pressure boilers is shown


How pH is measured and controlled is explained


Normal and maximum operating limits for boiler feed water treatment are identified and procedure to follow if these limits are exceeded is clarified


Purpose and procedure for different types of tests of boiler water chemistry are explained


Explain construction and operation of high-pressure turbines


Flow of steam through nozzles is analysed, and pressure and velocity compounding are illustrated


Construction of blades, bearings, glands, rotors and casings is explained


Warming-through procedure prior to start up is explained


Routine checks during operation are detailed


Emergency operation of plant with one turbine inoperative is outlined


Turbine shutdown procedure is clarified


Routine checks carried out at a turbine plant survey are detailed


Precautions necessary when turbine and gearing casings are open are explained and any repairs or adjustments that may be required are identified


Performance of steam plant by routine observations of pressure temperature speed and vibration of turbine, gearing and associated systems is analysed


Explain turbine gearing arrangements


Single and double reduction gearing systems are outlined


Use of double helical involute gear teeth is explained


Advantages and disadvantages of single and double locked tandem gearboxes are detailed


Purpose of fitting a nodal drive in gearing system is clarified


Construction and reason for installing flexible couplings in gearing system is explained


Layout of a turbo-electric drive is detailed


Analyse flow of air and gas through a simple cycle marine gas turbine


Construction of compressor, combustion system and single and two shaft turbines is explained


Necessary controls required for control and protection of plant are confirmed


Accessories necessary for safe operation of simple cycle marine gas turbines are listed