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Ship Stability for Masters and Mates
CLASS 4
(iii)
The effect of adding and removing weights. The danger of slack tanks.
Rigging a ship for loading and discharging cargo, the use of derricks, winches and cranes.
`Lining up' pipelines on oil products carriers.
The stowage and securing of cargoes including bulk cargoes. Grain cargoes, timber cargoes and ro-ro cargoes. A knowledge of the safety precautions to be taken during the loading and discharging of bulk oil, chemicals and other dangerous commod- ities.
Ventilation systems of holds and tanks. Entry into enclosed spaces.
CERTIFICATE OF COMPETENCY
General Ship Knowledge ± BTEC/SQA/HND Part 1
(a) Generalideasonshipconstructionandonplansavailableonboardship. General de®nitions of main dimensions.
The names of the principal parts of a ship.
The candidate will be expected to show his practical acquaintance with: Longitudinal and transverse framing
Beams and beam knees
Watertight bulkheads
Hatchways and closing appliances Rudders
Steering gear
Shell and deck plating
Double bottoms and peak tanks Bilges
Side and wing tanks
Stern frames
Propellers and propeller shafts Stern tubes
Sounding pipes
Air pipes
General pumping arrangements
The stiffening and strengthening to resist panting, pounding and longitudinal stresses.
Cause and prevention of corrosion in a ship's structure.
(b) General ideas on welding, riveting and burning and the precautions to be taken when such processes are carried out aboard ship.
(c) (i) The meaning of the terms: Block co-ef®cient; Displacement; Deadweight.
(ii) Density, relative density; Principle of Archimedes; ¯otation. Effect of density of water on draught and freeboard. Fresh water allowance. The marine hydrometer and its uses.