Assessor Resource

MARL045
Apply basic principles of naval architecture

Assessment tool

Version 1.0
Issue Date: May 2024


This unit involves the skills and knowledge required to perform basic calculations related to the seaworthiness of commercial vessels, including those dealing with watertight integrity and vessel stability.

This unit applies to people working in the maritime industry in the capacity of:

Electro-Technical Officer (STCW Electro-Technical Officer Unlimited)

Engineer Class 3 Near Coastal

Engineer Watchkeeper (STCW Engineer Watchkeeper Unlimited).

Licensing/Regulatory Information

Legislative and regulatory requirements are applicable to this unit.

Regulatory requirements include STCW International Maritime Organization (IMO) model course competencies and areas of knowledge, understanding and proficiency, together with the estimated total hours required for lectures and practical exercises. Teaching staff should note that timings are suggestions only and should be adapted to suit individual groups of trainees depending on their experience, ability, equipment and staff available for training.

Near Coastal Qualifications:

This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as an Engineer Class 3 Near Coastal as defined in the Marine Order 505 (Certificates of competency - National Law) 2013.

Blue Waters Qualifications:

This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as an Electro-Technical Officer (STCW Electro-Technical Officer Unlimited) or Engineer Watchkeeper (STCW Engineer Watchkeeper Unlimited) and to meet regulatory requirements this unit must be delivered consistent with Marine Orders and with the relevant sections of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW).

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)


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.

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

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

drawing load line mark and the load lines for a ship of a given summer moulded draught, displacement and tonnes per centimetre (TPC) immersion in saltwater

explaining basic principles of naval architecture

identifying actions to be taken in the event of partial loss of intake buoyancy

identifying and applying relevant mathematical formulas and techniques to solve basic problems related to speed, fuel consumption and stability of commercial vessels

identifying and interpreting numerical and graphical information, and performing mathematical calculations related to shipboard areas and volumes, vessel displacement, angle of loll, ship dimensions, centre of gravity (CG), vessel speed, fuel consumption and hydrostatic pressure

identifying, collating and processing information required to perform calculations related to speed, fuel consumption and stability of commercial vessels

imparting knowledge and ideas through verbal, written and visual means

performing accurate and reliable calculations

reading and interpreting written information needed to perform calculations related to the seaworthiness of commercial vessels

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 and performance criteria and include knowledge of:

basic structural members of a ship and the proper names of the various parts

buoyancy

calculations

CG, longitudinal centre of gravity (LCG) and vertical centre of gravity (VCG)

coefficients for areas, including:

midships (CM)

waterplane (CW)

coefficients for underwater volumes, including:

block (Cb)

prismatic (Cp)

curves of statistical stability

density correction formula

effects of slack tanks

filling rates, including:

accidental flooding

tank testing

fuel consumption calculations

hydrostatic pressure

movement of CG

principle of displacement

problems related to vessel displacement, including:

addition of mass

removal of mass

ship:

displacement

measurements

stability calculations

stability including statistical and initial

types, including:

bulk carriers

combination carriers

container

general cargo

oil, chemical and gas tankers

passenger

roll-on and roll-off (ro-ro)

ship construction, including:

bow and stern regions

fitting

hull structure

load line and draught marks, including:

chart of zones, areas and seasonal periods used to find the applicable load line

definition of 'freeboard'

definition of 'assigned summer freeboard'

freeboard, measured from the upper edge of the deck line to the water on each side, including checks that the ship is within its permitted limits of loading

height of sill varies between different types of ships based on load line rules

how to read draughts

items in the conditions of assignment of freeboard

load line mark and the load lines for a ship of a given summer moulded draught, displacement and TPC immersion in saltwater

where the deck line is marked

rudders and propellers

ship dimensions and form

ship stresses, including:

calculations for pressure at any depth below the liquid surface, given the density of the liquid

causes of corrosion onboard

'hogging' and 'sagging' and distinguishing between them

hogging and sagging stresses caused by sea state

hogging and sagging stresses resulting in tensile or compressive forces in the deck and bottom structure

liquid pressure loading on the ship's hull

loading conditions which give rise to hogging and sagging stresses

methods that are being used to minimise the effects of corrosion

'pounding' or 'slamming' and which part of the ship is affected

stress set up by liquid sloshing in a partly filled tank

racking stress and it causes

shear force and bending moments

stresses caused by localised loading

water pressure loads on ship's hull

shipboard:

areas, including:

bulkheads/elemental areas

water planes

mass, including:

ballast

cargo

fuel

passengers

volumes, including:

transverse sectional areas

water plane areas

Simpson’s Rules

TPC immersion

trim and stress tables, diagrams and stress calculating equipment

vessel speed calculations

watertight integrity.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

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.

Practical assessment must occur in a workplace, or realistic simulated workplace, under the normal range of workplace conditions.

Simulations and scenarios may be used where situations cannot be provided in the workplace or may occur only rarely, in particular for situations relating to emergency procedures and adverse weather conditions where assessment would be unsafe, impractical or may lead to environmental damage.

Resources for assessment must include access to:

applicable documentation, such as legislation, regulations, codes of practice, workplace procedures and operational manuals

tools, equipment, machinery, materials and relevant personal protective equipment (PPE) currently used in industry.

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.

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

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

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

drawing load line mark and the load lines for a ship of a given summer moulded draught, displacement and tonnes per centimetre (TPC) immersion in saltwater

explaining basic principles of naval architecture

identifying actions to be taken in the event of partial loss of intake buoyancy

identifying and applying relevant mathematical formulas and techniques to solve basic problems related to speed, fuel consumption and stability of commercial vessels

identifying and interpreting numerical and graphical information, and performing mathematical calculations related to shipboard areas and volumes, vessel displacement, angle of loll, ship dimensions, centre of gravity (CG), vessel speed, fuel consumption and hydrostatic pressure

identifying, collating and processing information required to perform calculations related to speed, fuel consumption and stability of commercial vessels

imparting knowledge and ideas through verbal, written and visual means

performing accurate and reliable calculations

reading and interpreting written information needed to perform calculations related to the seaworthiness of commercial vessels

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 and performance criteria and include knowledge of:

basic structural members of a ship and the proper names of the various parts

buoyancy

calculations

CG, longitudinal centre of gravity (LCG) and vertical centre of gravity (VCG)

coefficients for areas, including:

midships (CM)

waterplane (CW)

coefficients for underwater volumes, including:

block (Cb)

prismatic (Cp)

curves of statistical stability

density correction formula

effects of slack tanks

filling rates, including:

accidental flooding

tank testing

fuel consumption calculations

hydrostatic pressure

movement of CG

principle of displacement

problems related to vessel displacement, including:

addition of mass

removal of mass

ship:

displacement

measurements

stability calculations

stability including statistical and initial

types, including:

bulk carriers

combination carriers

container

general cargo

oil, chemical and gas tankers

passenger

roll-on and roll-off (ro-ro)

ship construction, including:

bow and stern regions

fitting

hull structure

load line and draught marks, including:

chart of zones, areas and seasonal periods used to find the applicable load line

definition of 'freeboard'

definition of 'assigned summer freeboard'

freeboard, measured from the upper edge of the deck line to the water on each side, including checks that the ship is within its permitted limits of loading

height of sill varies between different types of ships based on load line rules

how to read draughts

items in the conditions of assignment of freeboard

load line mark and the load lines for a ship of a given summer moulded draught, displacement and TPC immersion in saltwater

where the deck line is marked

rudders and propellers

ship dimensions and form

ship stresses, including:

calculations for pressure at any depth below the liquid surface, given the density of the liquid

causes of corrosion onboard

'hogging' and 'sagging' and distinguishing between them

hogging and sagging stresses caused by sea state

hogging and sagging stresses resulting in tensile or compressive forces in the deck and bottom structure

liquid pressure loading on the ship's hull

loading conditions which give rise to hogging and sagging stresses

methods that are being used to minimise the effects of corrosion

'pounding' or 'slamming' and which part of the ship is affected

stress set up by liquid sloshing in a partly filled tank

racking stress and it causes

shear force and bending moments

stresses caused by localised loading

water pressure loads on ship's hull

shipboard:

areas, including:

bulkheads/elemental areas

water planes

mass, including:

ballast

cargo

fuel

passengers

volumes, including:

transverse sectional areas

water plane areas

Simpson’s Rules

TPC immersion

trim and stress tables, diagrams and stress calculating equipment

vessel speed calculations

watertight integrity.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

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.

Practical assessment must occur in a workplace, or realistic simulated workplace, under the normal range of workplace conditions.

Simulations and scenarios may be used where situations cannot be provided in the workplace or may occur only rarely, in particular for situations relating to emergency procedures and adverse weather conditions where assessment would be unsafe, impractical or may lead to environmental damage.

Resources for assessment must include access to:

applicable documentation, such as legislation, regulations, codes of practice, workplace procedures and operational manuals

tools, equipment, machinery, materials and relevant personal protective equipment (PPE) currently used in industry.

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
Basic principal structural members of ship and proper names of various parts are detailed 
 
 
Tonnes per centimetre (TPC) values and Simpson’s Rules are applied to calculate vessel displacement 
 
Ship form dimensions are calculated using coefficients for areas 
 
 
 
CG calculations for a vessel are performed 
 
 
 
 
Relationship between changes in underwater volume and changes in water density is outlined 
 
 
 
 
 
Relationship between propellers and vessel speed is explained 
 
 
Fuel consumption is determined by applying admiralty coefficient for fuel consumption taking account of ship speed, shaft power and displacement 
 
 
Standard formula for hydrostatic pressure is defined 
 
 

Forms

Assessment Cover Sheet

MARL045 - Apply basic principles of naval architecture
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MARL045 - Apply basic principles of naval architecture

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: