SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Demonstrate an understanding of the mechanical systems on a ship 
SAQA US ID UNIT STANDARD TITLE
259399  Demonstrate an understanding of the mechanical systems on a ship 
ORIGINATOR
SGB Maritime Defence 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 08 - Law, Military Science and Security Sovereignty of the State 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard is intended for learners who wish to work in the maritime environment. The learner successfully completing this Unit Standard will gain essential knowledge in the mechanical systems of a ship, which is needed to operate with confidence onboard a ship.

Learners credited with this unit standard will be able to:
  • Demonstrate an understanding of the ventilation system.
  • Demonstrate an understanding of the air conditioning system.
  • Demonstrate an understanding of the compressed air system.
  • Demonstrate knowledge of the machinery components. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    It is assumed that the learner has the following knowledge and skills:
  • Communication at NQF Level 3. 

  • UNIT STANDARD RANGE 
    N/A 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Demonstrate an understanding of the ventilation system. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Ventilation system components are located and identified on systems drawings and on the ship. 

    ASSESSMENT CRITERION 2 
    An explanation is given of the colour coding system for different types of air and air conditioning trunking. 

    ASSESSMENT CRITERION 3 
    An explanation is given of the ventilation system components in terms of their function, purpose and the sections served by each vent module. 

    ASSESSMENT CRITERION 4 
    An explanation is given of the operating principles of the ventilation system. 

    ASSESSMENT CRITERION 5 
    A description is given of the risks associated with partial or complete ventilation system failure in terms of its impact on personnel and other mechanical systems. 

    ASSESSMENT CRITERION 6 
    An explanation is given of the integration between ventilation system components and the maintenance of air circulation, climate control and constant overpressure in the ship. 

    ASSESSMENT CRITERION 7 
    An explanation is given of procedures for safely entering the main ventilation compartment. 

    SPECIFIC OUTCOME 2 
    Demonstrate an understanding of the air conditioning system. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Air conditioning system components are located and identified on systems drawings and on the ship. 

    ASSESSMENT CRITERION 2 
    An explanation is given of air conditioning system with reference to the circulation paths of air through the various systems. 

    ASSESSMENT CRITERION 3 
    An explanation is given of the integration between air conditioning system components in order to ensure cool air circulation throughout the vessel. 

    ASSESSMENT CRITERION 4 
    A description is given of the process followed in order to create and maintain ambient temperature on the vessel. 

    ASSESSMENT CRITERION 5 
    A description is given of the consequences of partial or complete air conditioning systems failure with reference to impact on personnel, vessel systems and the operational capability of the vessel. 
    ASSESSMENT CRITERION RANGE 
    Consequences includes but is not limited to temperature rise, failure of citadel overpressure, the build up of carbon dioxide and electronic equipment failure.
     

    SPECIFIC OUTCOME 3 
    Demonstrate an understanding of the compressed air system. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    An explanation is given of the functioning of compressed air systems. 
    ASSESSMENT CRITERION RANGE 
    Compressed air system components include but is not limited to compressed air bottles, compressed air bottle blow down valves, accumulators, blow down valves, fuel trip off valves, compressors (40 bar start air, 250 bar start air, 330 bar breathing air), door seals, associated emergency filling bottles, the 8 Bar working air system and the 8 Bar control air system.
     

    ASSESSMENT CRITERION 2 
    An explanation is given of the integration between the various compressed air system components in terms of the systems purpose. 

    ASSESSMENT CRITERION 3 
    An explanation is given of the hazards associated with operating the compressed air system. 

    ASSESSMENT CRITERION 4 
    A description is given of optimum air pressures in terms of its application on board and the critical levels for effective and safe operation. 

    ASSESSMENT CRITERION 5 
    An explanation is given of the functioning and purpose of fuel trip off valves. 

    ASSESSMENT CRITERION 6 
    A description is given of the key differences between blow down valves with reference to their design, functioning and equipment pieces that they serve on the vessel. 
    ASSESSMENT CRITERION RANGE 
    Blow down valves includes blow down valves for diesel generators, propulsion diesels, gas turbine and torpedo bottles.
     

    ASSESSMENT CRITERION 7 
    Compressed air system components are located and identified on systems drawings and on the ship. 

    SPECIFIC OUTCOME 4 
    Demonstrate knowledge of the machinery components. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Main machinery components are located and identified on systems drawings and on the ship. 

    ASSESSMENT CRITERION 2 
    An explanation is given of machinery components in terms of function and purpose. 
    ASSESSMENT CRITERION RANGE 
    Main machinery components includes but is not limited to gas turbines, propulsion diesel engines, diesel generators, gear boxes, propeller shafts and associated seals and glands, water-jet shafts and thrust bearings, local control panels for all propulsion equipment, exhausts for all engines and layout/run of exhausts and equipment and systems associated with setting and/or adjusting the list and/or trim.
     

    ASSESSMENT CRITERION 3 
    A description is given of the risks associated with unacceptable list and/or trim of the vessel in terms of machinery components. 
    ASSESSMENT CRITERION RANGE 
    Risks includes but is not limited to loss of stability and capsize.
     

    ASSESSMENT CRITERION 4 
    An explanation is given of safety procedures associated with machinery compartments in terms of the elimination of potential hazards, damage to machinery and loss of life. 
    ASSESSMENT CRITERION RANGE 
    Safety precautions include but are not limited to starting engines, idling engines, engaging shafts/propellers and exhaust outlets.
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • An individual wishing to be assessed (including through RPL) against this Unit Standard may apply to an assessment agency, assessor or provider institution accredited by the relevant ETQA, or an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Anyone assessing a learner against this Unit Standard must be registered as an assessor with the relevant ETQA or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this Unit Standard or assessing this Unit Standard must be accredited as a provider with the relevant ETQA or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Moderation of assessment will be conducted by the relevant ETQA at its discretion. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    N/A 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO COLLECTING 
    Collecting, analysing, organising and critically evaluating information to better understand and explain:
  • The ventilation system.
  • The air conditioning system.
  • The compressed air system.
  • The machinery components. 

  • UNIT STANDARD CCFO SCIENCE 
    Using science and technology effectively and critically, showing responsibility towards the environment and health of others when:
  • Understanding of the ventilation system.
  • Understanding of the air conditioning system.
  • Understanding of the compressed air system.
  • Demonstrate knowledge of the machinery components. 

  • UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  64049   Further Education Training Certificate: Harbour Watchkeeping  Level 4  NQF Level 04  Reregistered  2023-06-30  SAS SETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.