COMPETENCE 13 – Maintain seaworthiness of the ship
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#1. When initial stability applies, the height of the center of gravity plus the metacentric height equals the:
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#2. When liquid is free to move transversely in a tank, the effect is called:
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#3. Which of the following will improve stability?
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#4. Which does not affect the value of the free surface correction?
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#5. Which among the theory proves that the weight of a floating vessel is equal to the weight of the displaced water?
Incorrect!
#6. When a vessel is floating upright, the distance from the keel to the meta center is the:
Incorrect!
#7. When the height of the metacenter is the same as the height of the center of gravity, the metacentric height is equal to:
Incorrect!
#8. You must shore up a bulkhead due to flooding. The bulkhead approximate a rectangle. The center of pressure of the shores on the bulkhead should be located:
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#9. Which is part of the ground tackle?
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#10. Which of the listed is used as an indicator of initial stability?
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#11. Which technique could be used to give a more comfortable roll to a stiff ship?
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#12. Which of the following decreases ship's stability because it reduces initial stability and is usually off center?
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#13. Your vessel is damaged and is listing to port. The rolling period is short. There is sufficient freeboard so deck edge submersion is not a problem. What corrective action should be taken first in regards to the vessel’s stability?
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#14. With no environmental forces acting on the vessel, the center of gravity of an inclined vessel is vertically aligned with the:
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#15. Who is responsible for maintaining the vessel’s structural strength?
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#16. Your vessel damaged and listing to port. There is a short rolling period around the angle of list. The port side freeboard is reduced to 1 foot. There is no trim. Which action should you take first?
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#17. When displacement increases, the free surface corrections for slacks tanks:
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#18. Which statement concerning the lashing of containers with solid bar or wire rope lashing is TRUE?
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#19. Which of the following weld faults can only be detected by a method that examines the internal structure of a weld:
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#20. When a weight is shifted down, which of the following takes place?
Incorrect!
There are 15 questions for the actual examination for Competence 13 for OIC-NW with a passing rate of 70%. This means that you are only allowed to make 4 mistakes.
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