Seaworthiness of Ships. Test 2 – Online Maritime Tests

What are the 'Stresses' that effect a ship?

The ageing process of a vessel in heavy weather.
Rust and general wear & tear, when accompanied by poor maintenance.
Heavy cargoes such as iron ore, steel billets and other ores with low stowage factors.
Mainly tensile, compressive and bending stresses.

What does Solas 74, chapter III, regulation 9 refer to concearning notices onboard?

Which letters signify the metacentric height on the diagram?

What is a 'Metacentre?'

When a vessel heels over so that the low side touches the sea, that point is the metacentre.
It is the intersecting point between the vertical lines through the centre of buoyancy in the initial and slightly listed positions.
It is the position between the centre of gravity and the centre of buoyancy.
When a vessel is in a vertical position, the metacentre is the point below the centre of buoyancy.

Which of the following requirements corresponds to present regulations? (NSCL 4/11.1)

The clearance on one side of the vehicle shall be at least 1000 mm.
The car deck of the ferry shall be closed at both ends.
During embarking and disembarking the driving ramp shall be securely locked to the recess of the ferry.
The clearance on both sides of the vehicle shall be at least 600 mm.

What is a 'Bending Moment' in a ship?

This is another name for hogging, and it occurs when there is too much weight at either end.
The method of applying a superior force to a metal object, to bend or shape said object to the way you want it.
The process of lifting a heavy object, by squatting first, before applying an upward lifting motion with one's arms & legs.
A beam bends by placing weights on either side of it. The 'Moment' is calculated by multiplying the weight applied by the respective distance.

What is the 'Depth Moulded' in relation to a ship?

The vertical distance from the top of keel to the uppermost continuous deck at side.
The vertical distance from the keel to the main deck.
The vertical distance from the waterline, to the uppermost deck.
The vertical distance from the keel, to the top of the centremost hatch coaming.

What is a 'Shear Force' in a ship?

A very powerful wind force, such as that experienced in a tropical revolving storm.
A vertical force at the point at which a load is being carried, with the force being the difference between upward and downward thrust.
A violent sideways motion in heavy weather, which can cause a vessel to shear violently.
It is the total weight applied at a recognised 'weaker' part of a ship , such as where the Main Deck meets the superstructure.

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