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. |