Define stability in ship terms.
The ability of a ship to return to an upright position after being tilted.
What is metacentric height?
The distance between the center of gravity and the metacenter, influencing stability.
True or false: A higher center of gravity increases stability.
FALSE
A higher center of gravity decreases stability.
Fill in the blank: Righting arm is the distance between _______ and the center of gravity.
The center of buoyancy
What does GM stand for?
GM stands for metacentric height, a key stability measurement.
Define buoyancy.
The upward force exerted by a fluid that opposes the weight of an immersed object.
What is the purpose of a stability booklet?
To provide stability data and guidelines for safe ship operation.
True or false: Trim refers to the ship’s balance from bow to stern.
TRUE
Fill in the blank: Free surface effect occurs when liquids in _______ shift.
Tanks
What is dynamic stability?
The stability of a ship in motion, considering forces acting during movement.
Define deadweight tonnage.
The total weight a ship can safely carry, including cargo, fuel, and crew.
What is a stability curve?
A graphical representation of a ship’s stability at various angles of heel.
True or false: Ballasting can improve a ship’s stability.
TRUE
Fill in the blank: Lateral stability is affected by the ship’s _______.
Width and weight distribution
What does KG represent?
KG is the height of the center of gravity above the keel.
Define stability criteria.
Standards used to assess a ship’s stability under various loading conditions.
What is initial stability?
The stability of a ship at small angles of heel, determined by GM.
True or false: A ship with a low GM is more stable.
FALSE
A low GM indicates less righting ability.
Fill in the blank: Angle of heel is the angle between the _______ and the vertical.
Ship’s centerline
What is the righting moment?
The force that acts to return a ship to an upright position after tilting.
Define stability assessment.
The evaluation of a ship’s stability characteristics under specific conditions.
What does VCG stand for?
VCG stands for vertical center of gravity, affecting stability.
True or false: Weight distribution affects a ship’s stability.
TRUE
Fill in the blank: Weather helm is the tendency of a ship to _______.
Turn into the wind
