Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. |
1 | Outline size, shape and structural components of vessels | 1.1 | Correct terms to describe size and shape of vessels are used |
1.2 | Correct terms to describe structural components of vessels are used |
1.3 | Correct terms to describe size or cargo carrying capacity of vessels are used |
1.4 | Online and other sources of information on size, shape and structural components of vessels are accessed |
2 | Explain static and dynamic forces and moments exerted on hull of a vessel | 2.1 | Correct terms to describe effects of forces exerted on hull are used |
2.2 | Various forces acting on the vessel are analysed |
2.3 | Stresses on various components of the hull are compared as a result of these forces |
2.4 | Typical weight, load, shear force curves and bending moment diagram are sketched |
3 | Explain how vessel structure is designed to resist distortion | 3.1 | Scantlings are defined |
3.2 | Classification society rules for determining scantling sizes are identified |
3.3 | Main strength members of vessel hull are identified |
3.4 | Importance of maintaining integrity of principal strength members is explained |
4 | Identify materials used in hull construction | 4.1 | Types of materials used in hull construction are identified |
4.2 | Properties of high tensile steel are defined |
4.3 | Types of steel used in hull construction are identified |
4.4 | Use of forged, rolled and cast components in hull construction is explained |
5 | Explain methods of joining shipbuilding materials | 5.1 | Different methods and applications of welding used in shipbuilding and repair are outlined |
5.2 | How materials are joined so that the strength of components is not impaired is confirmed |
5.3 | Different methods used to connect aluminium to steel are outlined |
6 | Explain bottom structure, forepeak and afterpeak of vessels | 6.1 | Differentiation is made between different types of keel construction |
6.2 | Advantages and disadvantage of duct keel in relation to ship strength are explained |
6.3 | How safe access to the duct keel is obtained, is outlined |
6.4 | Longitudinally framed double bottom construction is distinguished from a transversely framed double bottom construction |
6.5 | Differentiation is made between bracket floors and plate floors |
6.6 | Structural requirements for supporting different types of main engines are outlined |
6.7 | Classification society rules for construction of forepeak and afterpeak sections are explained |
7 | Explain deck and frame construction | 7.1 | Longitudinal, transverse and combined framing are compared and contrasted in relation to ship strength |
7.2 | Position, purpose and construction of a deep frame are explained |
7.3 | Transition methods from one frame type to another are outlined |
7.4 | How the strength of frames is maintained when connecting to deck beams and other strength members is explained |
7.5 | How stress raisers are reduced around hatchways, door openings, forecastle, bridge structure, watertight doors and gastight doors is explained |
7.6 | Bilge keels structure with particular reference to fitment to hull is outlined and purpose for this type of fitting is explained |
7.7 | Classification requirements and restrictions of sheer strake, keel strake and garboard strake are examined |
7.8 | Requirements for use of suction and discharge valves and fittings in the shell above and below the waterline are outlined |
7.9 | Strength members required for deck machinery are outlined |
8 | Explain construction of watertight bulkheads | 8.1 | Purpose of bulkheads is stated |
8.2 | Minimum number of bulkheads and their locations are determined |
8.3 | Bulkhead is sketched showing construction and attachment to hull |
8.4 | Purpose, construction and location of collision bulkheads is outlined |
8.5 | Test procedures for bulkheads are clarified |
8.6 | How strength is maintained in openings is explained |
8.7 | Requirements for penetration of collision bulkhead are stated |
8.8 | Situations in which non-watertight bulkheads are fitted are identified |
9 | Explain bow and stern forces | 9.1 | Differentiation is made between panting and pounding forces |
9.2 | How forepeak sections are strengthened to resist panting and pounding forces is explained |
9.3 | Anchor and cable arrangements in forepeak tank are explained |
9.4 | Strength members in afterpeak sections are outlined |
9.5 | Different rudder support arrangements are clarified |
10 | Outline vessel ventilation systems | 10.1 | Different types of ventilation systems are clarified |
10.2 | Why ventilator cowls are required is explained |
11 | Explain damage criteria | 11.1 | How unsymmetrical flooding is minimised is explained |
11.2 | Damage control measures are outlined |
11.3 | How damage criteria are applied is explained |
12 | Explain use of stabilisers to reduce effect of rolling | 12.1 | Use of stabilisers is explained |
12.2 | Bilge keels and fin type stabilisers are compared and contrasted |
12.3 | How stabilisers are attached to the hull is explained |
12.4 | Hull stiffening requirements for fin and bilge keel types is explained |
13 | Explain weather tight and watertight integrity | 13.1 | Weather tight integrity is distinguished from watertight integrity |
13.2 | How the position of load line is determined is explained |
13.3 | Design criteria imposed by Conditions of Assignment of Load Lines is explained |
13.4 | How watertight integrity of weather deck is maintained and tested is explained |
13.5 | Different types of tank air vents and their closing devices are compared and contrasted |
14 | Outline processes involved in painting a vessel | 14.1 | Surface preparation required prior to painting steel is outlined |
14.2 | Hazards and safety measures to be taken during surface preparations are identified |
14.3 | Properties of paints required for different areas of vessels are specified |
14.4 | Procedures required for successful application of paints are clarified |
14.5 | Precautions required when handling and applying paint are examined |
14.6 | Action of self-polishing and non-polishing anti fouling paints is compared and outcomes documented |
14.7 | Reasons for using cathodic protection systems are clarified |