Specimen 02

What do you understand by the term “freeboard”?

• Waterline to the keel

• Waterline to the main deck

• Waterline to the center of gravity

• Waterline to the center of buoyancy

The depth a vessel sinks when afloat, as measured from the waterline to the lowest immersed part of the hull or bottom of the keel is called the

• Draft

• Freeboard

• Heel

• Deadweight

A vessel’s departure from upright, due to pressure of wind on one side, contact with the bottom, or turning under a large helm angle at high speed is defined as:

• Trim

• Heel

• List

• Draft

A vessel’s inclination to one side due to forces within such as an unequal lateral distribution of weights is defined as:

• Trim

• Heel

• List

• Draft

Define the term “deadweight”

• The total weight of a ship remaining after deducting the weight of the cargo aboard

• Under deck tonnage

• The total weight of stores, bunkers, fresh water and cargo carried by a ship

• The total weight of a ship and all its contents

The difference between the load drafts for salt water and fresh water for ocean going vessels is called:

• water allowance

• load line marks

• fresh water allowance

• draft lines

What would the ship’s stability condition be if the center of gravity coincided with the metacenter?

• The ship would have excessive stability

• The ship would be in a condition of neutral equilibrium

• The ship would have positive GM

• The ship would have negative GM

What dangers are involved in overloading?

• a reduction of freeboard and adverse effect of this on stability

• there is a greater possibility of structural damage by shipping heavy seas

• injuries to crewmembers by heavy seas

• none of the above

What is the danger of having a tank only partially filled?

• The position of the metacenter moves creating an upsetting lever

• G moves vertically upwards causing adverse effects on the vessel’s stability

• When the ship heels the surface of liquid remains parallel to the waterline

• There is no danger

How is the center of gravity affected if a weight is loaded, removed, or shifted on a vessel?

• The center of gravity moves towards a weight removed

• The center of gravity moves away from a weight loaded

• When a weight is shifted within the vessel, the center of gravity is not affected

• The center of gravity moves in the same direction as, and parallel to, weight added or shifted