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WorksheetsExercise 1/lesson A
Total questions: 14
Worksheet time: 7mins
The term draft indicates the depth of the keel below the waterline:
Forward
Aft
Amidships
At its lowest point.
The average of the fore and aft draft is termed ________ draft.
Average
load
Mean
Freeboard
The actual weight of a ship in its basic working condition is indicated by:
Gross tonnage
Net tonnage
Displacement
Light displacement
What is the law of flotation?
The weight of water displaced by a ship is equal to the weight of the cargo she is capable of carrying.
Heavy cargo must be stowed low in the hold.
The weight of the cargo must not exceed the weight of the ship.
A floating object will displace a measure of liquid equal to its own weight.
The term displacement of a ship is:
The amount of water pushed aside by the progress of a ship when having way upon her.
The weight of a ship and all its contents at a given time.
The amount of cargo, stores and bunkers a ship can carry.
The amount of cargo a ship can carry.
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 “centre of the underwater volume of a vessel” is known as:
centre of gravity
centre of buoyancy
centre of flotation
metacentre
What do you understand by the term “freeboard”? It is the vertical distance to:
water level to the keel
water level from the main deck
water level from the centre of gravity
water level from the centre of buoyancy
The centre of gravity of a vessel is:
the point where the weight of a vessel is considered to act
the point about which the vessel heels
a point located on the centerline of the vessel mid length
a point halfway up from the keel to the deck
Define the term “Metacentre” (transverse).
it is the point above which one must not allow the centre of gravity to rise.
when a ship is heeled through a small angle the intersection of the vertical through the new centre of buoyancy and the centerline is the metacentre.
it is the point in the centerline of a ship located amidships.
it is the point below the centre of buoyancy.
Metacentric height is:
the height of the metacentre above the centre of buoyancy.
the height of the metacentre above the main working deck.
he height of the metacentre below the centre of gravity.
the height of the metacentre above the centre of gravity.
The centre of floatation is:
the point about which the ship heels and trims.
the point at which all the weight of the body is said to act.
the geographical centre of the underwater portion of the ship.
he point above the metacentre.
Reserve buoyancy is defined as:
the buoyancy of a vessel in the loaded condition.
the buoyancy of a vessel in the light condition.
that volume of a vessel that is above water level and can be made watertight.
that volume of a vessel that is above water level and cannot be made watertight.
Trim is defined as
the difference in draft between the port and starboard sides.
the difference in draft fore and aft.
the difference in draft amidships.
the change in draft going from fresh water into salt water.
