Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MARL016 Mapping and Delivery Guide
Apply intermediate principles of marine mechanics

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency MARL016 - Apply intermediate principles of marine mechanics
Description
Employability Skills
Learning Outcomes and Application This unit involves the skills and knowledge required to apply intermediate principles of marine mechanics and to perform associated calculations needed to operate and maintain marine machinery.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).No licensing, legislative or certification requirements apply to this unit at the time of publication.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Assessors must satisfy National Vocational Education and Training Regulator (NVR)/Australian Quality Training Framework (AQTF) assessor requirements.

Assessment must satisfy the National Vocational Education and Training Regulator (NVR)/Australian Quality Training Framework (AQTF) standards.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Assessment must occur in workplace operational situations or where these are not available, in simulated workplace operational situations or an industry-approved marine operations site that replicates workplace conditions, where intermediate principles of marine mechanics can be applied.

Resources for assessment include access to:

applicable and relevant documentation including workplace procedures, regulations, codes of practice and operation manuals

appropriate range of relevant operational situations in the workplace

diagrams, specifications and other information required for performing calculations related to marine mechanics

technical reference library with current publications on marine mechanics

tools, equipment and personal protective equipment currently used in industry.

Performance should be demonstrated consistently over time and in a suitable range of contexts.
Prerequisites/co-requisites
Competency Field L – Marine Engineering
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Apply principle of moments to determine forces in supports, connections, bearings and support systems
  • Equilibrium of solids is explained
  • Polygon of forces is applied to determine an unknown force
  • Principle of moments is applied to solve moments of any quantity
  • Resultant of a system of co-planer forces is calculated
  • Twisting moment due to engine crank mechanisms is calculated
  • Moments of areas and solids are calculated
       
Element: Perform friction calculations
  • Laws of friction are applied to solve problems involving friction in inclined planes
  • Coefficient of friction is converted to angle of repose
  • Friction theory is applied to solve problems involving screw threads
  • Brake torque is analysed and problems are solved relating to work lost on brake shoes and brake discs
       
Element: Solve motion problems
  • Linear velocity/time and acceleration/time graphs are applied to derive standard linear formula
  • Problems of linear and angular motion involving uniform acceleration and deceleration are solved
  • Marine engineering problems involving free falling bodies are solved
       
Element: Solve problems using principle of momentum
  • Relationship between momentum and impulse is explained
  • Conservation of energy theory is applied to problems involving collision of perfectly elastic bodies
       
Element: Solve problems using principles of dynamics
  • Centripetal force is distinguished from centrifugal force
  • Relationship between centripetal and centrifugal force and mass, angular velocity and radius is clarified
  • Problems are solved involving centripetal and centrifugal forces
  • Centripetal acceleration is distinguished from centrifugal force
  • Out-of-balance forces on co-planer systems are calculated
  • Bearing reactions in rotating shafts are determined
  • Radius of gyration and moment of inertion when applied to rotating bodies is explained
  • Centrifugal forces in governors are calculated
  • Principles of dynamics are applied to solve problems involving rotating bodies, accelerating shafts, motors and flywheels
       
Element: Calculate stresses and strains on components due to axial loading and restricted thermal expansion
  • Reduction in area and percentage elongation of tensile test specimens is calculated
  • Stresses in composite bodies of dissimilar dimensions and dissimilar materials are calculated
  • Problems involving thermal stress on components due to temperature change with free and restricted expansion are solved
       
Element: Apply thin cylinder theory to determine stresses in pressure vessels
  • Stress on thin-shelled pressure vessels due to internal pressure is calculated
  • Formula for calculating stress on thin-shelled pressure vessels to incorporate special conditions is modified
       
Element: Apply torsion theory to calculate shear stress
  • Torsion equation is applied to solve problems involving solid and hollow shafts
  • Power transmitted in shafts and coupling bolts is calculated
  • Torsion equation is applied to calculate stress and deflection in a close-coiled helical spring
  • Power transmitted by shafts and couplings is calculated
       
Element: Solve problems involving fluids
  • Variation of fluid pressure with depth is calculated
  • Bernoulli’s Theorem is used to solve problems of velocity, pressure and head in pipes and ducted systems
  • Archimedes’ Principle is used to solve problems related to floating vessels using real and apparent weight
       
Element: Apply beam theory to solve problems
  • Reactions of a loaded beam are calculated
  • Shear force and bending moment diagrams are constructed for simply supported and cantilever beams
  • Shear force and bending moment diagrams for beams with concentrated and uniformly distributed loads are calculated
  • Beam equation is applied to derive stresses in beams loaded with concentrated and uniformly distributed loads
  • Beam equation is applied to calculate bending stresses
       


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.

Elements describe the essential outcomes.

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

1

Apply principle of moments to determine forces in supports, connections, bearings and support systems

1.1

Equilibrium of solids is explained

1.2

Polygon of forces is applied to determine an unknown force

1.3

Principle of moments is applied to solve moments of any quantity

1.4

Resultant of a system of co-planer forces is calculated

1.5

Twisting moment due to engine crank mechanisms is calculated

1.6

Moments of areas and solids are calculated

2

Perform friction calculations

2.1

Laws of friction are applied to solve problems involving friction in inclined planes

2.2

Coefficient of friction is converted to angle of repose

2.3

Friction theory is applied to solve problems involving screw threads

2.4

Brake torque is analysed and problems are solved relating to work lost on brake shoes and brake discs

3

Solve motion problems

3.1

Linear velocity/time and acceleration/time graphs are applied to derive standard linear formula

3.2

Problems of linear and angular motion involving uniform acceleration and deceleration are solved

3.3

Marine engineering problems involving free falling bodies are solved

4

Solve problems using principle of momentum

4.1

Relationship between momentum and impulse is explained

4.2

Conservation of energy theory is applied to problems involving collision of perfectly elastic bodies

5

Solve problems using principles of dynamics

5.1

Centripetal force is distinguished from centrifugal force

5.2

Relationship between centripetal and centrifugal force and mass, angular velocity and radius is clarified

5.3

Problems are solved involving centripetal and centrifugal forces

5.4

Centripetal acceleration is distinguished from centrifugal force

5.5

Out-of-balance forces on co-planer systems are calculated

5.6

Bearing reactions in rotating shafts are determined

5.7

Radius of gyration and moment of inertion when applied to rotating bodies is explained

5.8

Centrifugal forces in governors are calculated

5.9

Principles of dynamics are applied to solve problems involving rotating bodies, accelerating shafts, motors and flywheels

6

Calculate stresses and strains on components due to axial loading and restricted thermal expansion

6.1

Reduction in area and percentage elongation of tensile test specimens is calculated

6.2

Stresses in composite bodies of dissimilar dimensions and dissimilar materials are calculated

6.3

Problems involving thermal stress on components due to temperature change with free and restricted expansion are solved

7

Apply thin cylinder theory to determine stresses in pressure vessels

7.1

Stress on thin-shelled pressure vessels due to internal pressure is calculated

7.2

Formula for calculating stress on thin-shelled pressure vessels to incorporate special conditions is modified

8

Apply torsion theory to calculate shear stress

8.1

Torsion equation is applied to solve problems involving solid and hollow shafts

8.2

Power transmitted in shafts and coupling bolts is calculated

8.3

Torsion equation is applied to calculate stress and deflection in a close-coiled helical spring

8.4

Power transmitted by shafts and couplings is calculated

9

Solve problems involving fluids

9.1

Variation of fluid pressure with depth is calculated

9.2

Bernoulli’s Theorem is used to solve problems of velocity, pressure and head in pipes and ducted systems

9.3

Archimedes’ Principle is used to solve problems related to floating vessels using real and apparent weight

10

Apply beam theory to solve problems

10.1

Reactions of a loaded beam are calculated

10.2

Shear force and bending moment diagrams are constructed for simply supported and cantilever beams

10.3

Shear force and bending moment diagrams for beams with concentrated and uniformly distributed loads are calculated

10.4

Beam equation is applied to derive stresses in beams loaded with concentrated and uniformly distributed loads

10.5

Beam equation is applied to calculate bending stresses

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

applying relevant work health and safety/occupational health and safety (WHS/OHS) requirements and work practices

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

identifying and applying relevant mathematical formulas and techniques to solve basic problems related to marine mechanics

identifying and interpreting numerical and graphical information, and performing mathematical calculations to solve problems related to fluids and stresses

identifying, collating and processing information required to perform basic calculations related to marine mechanics

imparting knowledge and ideas through verbal, written and visual means

reading and interpreting written information needed to perform basic calculations in marine mechanics

solving problems using appropriate laws and principles

using calculators to perform mathematical calculations.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

basic principles of marine mechanics

beam theory

conservation of energy theorem

factor of safety

fluids

forces:

balanced and unbalanced forces

centre of gravity

conditions for equilibrium

coplanar

definitions of matter, mass, weight, force, density and relative density

forces

moments of couples

parallelogram and triangle of forces

pressure

scalar and vector quantities

vector representation of forces

joint efficiency factor

laws of:

friction

motion

momentum

motion:

action and reaction

force, velocity and acceleration

linear and angular motion

momentum

Newton’s laws of motion

pressure vessels

principle of moments

principles of dynamics

relationship between torque and power

stress and strain:

direct stress and strain

Hooke's law

load extension graphs

modulus of elasticity

shear stress and strain

thin cylinder theory

WHS/OHS requirements and work practices.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, 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.

Elements describe the essential outcomes.

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

1

Apply principle of moments to determine forces in supports, connections, bearings and support systems

1.1

Equilibrium of solids is explained

1.2

Polygon of forces is applied to determine an unknown force

1.3

Principle of moments is applied to solve moments of any quantity

1.4

Resultant of a system of co-planer forces is calculated

1.5

Twisting moment due to engine crank mechanisms is calculated

1.6

Moments of areas and solids are calculated

2

Perform friction calculations

2.1

Laws of friction are applied to solve problems involving friction in inclined planes

2.2

Coefficient of friction is converted to angle of repose

2.3

Friction theory is applied to solve problems involving screw threads

2.4

Brake torque is analysed and problems are solved relating to work lost on brake shoes and brake discs

3

Solve motion problems

3.1

Linear velocity/time and acceleration/time graphs are applied to derive standard linear formula

3.2

Problems of linear and angular motion involving uniform acceleration and deceleration are solved

3.3

Marine engineering problems involving free falling bodies are solved

4

Solve problems using principle of momentum

4.1

Relationship between momentum and impulse is explained

4.2

Conservation of energy theory is applied to problems involving collision of perfectly elastic bodies

5

Solve problems using principles of dynamics

5.1

Centripetal force is distinguished from centrifugal force

5.2

Relationship between centripetal and centrifugal force and mass, angular velocity and radius is clarified

5.3

Problems are solved involving centripetal and centrifugal forces

5.4

Centripetal acceleration is distinguished from centrifugal force

5.5

Out-of-balance forces on co-planer systems are calculated

5.6

Bearing reactions in rotating shafts are determined

5.7

Radius of gyration and moment of inertion when applied to rotating bodies is explained

5.8

Centrifugal forces in governors are calculated

5.9

Principles of dynamics are applied to solve problems involving rotating bodies, accelerating shafts, motors and flywheels

6

Calculate stresses and strains on components due to axial loading and restricted thermal expansion

6.1

Reduction in area and percentage elongation of tensile test specimens is calculated

6.2

Stresses in composite bodies of dissimilar dimensions and dissimilar materials are calculated

6.3

Problems involving thermal stress on components due to temperature change with free and restricted expansion are solved

7

Apply thin cylinder theory to determine stresses in pressure vessels

7.1

Stress on thin-shelled pressure vessels due to internal pressure is calculated

7.2

Formula for calculating stress on thin-shelled pressure vessels to incorporate special conditions is modified

8

Apply torsion theory to calculate shear stress

8.1

Torsion equation is applied to solve problems involving solid and hollow shafts

8.2

Power transmitted in shafts and coupling bolts is calculated

8.3

Torsion equation is applied to calculate stress and deflection in a close-coiled helical spring

8.4

Power transmitted by shafts and couplings is calculated

9

Solve problems involving fluids

9.1

Variation of fluid pressure with depth is calculated

9.2

Bernoulli’s Theorem is used to solve problems of velocity, pressure and head in pipes and ducted systems

9.3

Archimedes’ Principle is used to solve problems related to floating vessels using real and apparent weight

10

Apply beam theory to solve problems

10.1

Reactions of a loaded beam are calculated

10.2

Shear force and bending moment diagrams are constructed for simply supported and cantilever beams

10.3

Shear force and bending moment diagrams for beams with concentrated and uniformly distributed loads are calculated

10.4

Beam equation is applied to derive stresses in beams loaded with concentrated and uniformly distributed loads

10.5

Beam equation is applied to calculate bending stresses

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Governors must include:

porter

watt

Special conditions must include:

joint efficiencies

safety factors

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
Equilibrium of solids is explained 
Polygon of forces is applied to determine an unknown force 
Principle of moments is applied to solve moments of any quantity 
Resultant of a system of co-planer forces is calculated 
Twisting moment due to engine crank mechanisms is calculated 
Moments of areas and solids are calculated 
Laws of friction are applied to solve problems involving friction in inclined planes 
Coefficient of friction is converted to angle of repose 
Friction theory is applied to solve problems involving screw threads 
Brake torque is analysed and problems are solved relating to work lost on brake shoes and brake discs 
Linear velocity/time and acceleration/time graphs are applied to derive standard linear formula 
Problems of linear and angular motion involving uniform acceleration and deceleration are solved 
Marine engineering problems involving free falling bodies are solved 
Relationship between momentum and impulse is explained 
Conservation of energy theory is applied to problems involving collision of perfectly elastic bodies 
Centripetal force is distinguished from centrifugal force 
Relationship between centripetal and centrifugal force and mass, angular velocity and radius is clarified 
Problems are solved involving centripetal and centrifugal forces 
Centripetal acceleration is distinguished from centrifugal force 
Out-of-balance forces on co-planer systems are calculated 
Bearing reactions in rotating shafts are determined 
Radius of gyration and moment of inertion when applied to rotating bodies is explained 
Centrifugal forces in governors are calculated 
Principles of dynamics are applied to solve problems involving rotating bodies, accelerating shafts, motors and flywheels 
Reduction in area and percentage elongation of tensile test specimens is calculated 
Stresses in composite bodies of dissimilar dimensions and dissimilar materials are calculated 
Problems involving thermal stress on components due to temperature change with free and restricted expansion are solved 
Stress on thin-shelled pressure vessels due to internal pressure is calculated 
Formula for calculating stress on thin-shelled pressure vessels to incorporate special conditions is modified 
Torsion equation is applied to solve problems involving solid and hollow shafts 
Power transmitted in shafts and coupling bolts is calculated 
Torsion equation is applied to calculate stress and deflection in a close-coiled helical spring 
Power transmitted by shafts and couplings is calculated 
Variation of fluid pressure with depth is calculated 
Bernoulli’s Theorem is used to solve problems of velocity, pressure and head in pipes and ducted systems 
Archimedes’ Principle is used to solve problems related to floating vessels using real and apparent weight 
Reactions of a loaded beam are calculated 
Shear force and bending moment diagrams are constructed for simply supported and cantilever beams 
Shear force and bending moment diagrams for beams with concentrated and uniformly distributed loads are calculated 
Beam equation is applied to derive stresses in beams loaded with concentrated and uniformly distributed loads 
Beam equation is applied to calculate bending stresses 

Forms

Assessment Cover Sheet

MARL016 - Apply intermediate principles of marine mechanics
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MARL016 - Apply intermediate principles of marine mechanics

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