AB AB Vessel Stability and Trim 2

Question 1

How is 'trim' defined in naval architecture?

Accepted Answer

The difference between the forward draft and the after draft

Answer

The vessel's permanent lean to one side

Answer

The vessel's speed through the water

Answer

The clearance between keel and seafloor

Question 2

What is the 'center of buoyancy'?

Accepted Answer

The geometric center of the vessel's submerged volume

Answer

The center of the ship's total weight

Answer

The pivot point of the rudder assembly

Answer

The midpoint of the vessel's overall length

Question 3

What is 'freeboard'?

Accepted Answer

The vertical distance from the waterline to the main deck edge

Answer

The distance from the keel to the waterline

Answer

The vessel's beam measured at the waterline

Answer

The height of the superstructure above the main deck

Question 4

What does 'displacement' mean when applied to a vessel?

Accepted Answer

The weight of water displaced by the hull, which equals the vessel's total weight

Answer

The vessel's net cargo-carrying capacity

Answer

The distance the vessel travels per unit of fuel burned

Answer

The thrust produced by the vessel's propulsion system

Question 5

What does the load line (Plimsoll mark) indicate?

Accepted Answer

The maximum safe loading depth in various zones and seasons

Answer

The vessel's center of gravity when fully loaded

Answer

The vessel's forward draft at maximum load

Answer

The minimum safe freeboard for harbor operations

Question 6

What effect does adding weight to a vessel have on its draft?

Accepted Answer

It increases draft as the vessel sinks deeper

Answer

It decreases draft as buoyancy adjusts

Answer

Draft is unaffected by added weight

Answer

It causes the vessel to trim by the head only