单项选择题
A.upward-acting weight force B.downward-acting weight force C.upward-acting buoyant force D.environmental force
Stability is determined by the relationship of the cent...
单项选择题Stability is determined by the relationship of the center of gravity and the（）.
A.water depth B.keel C.center of flotation D.center of buoyancy
Repair of vital machinery and services on a ship should...
单项选择题Repair of vital machinery and services on a ship should be accomplished（）.
A.after control of fire，flooding，and structural repairs B.immediately C.after control of fire，but before control of flooding D.after stability is restored
Initial stability refers to stability（）.A.at small angl...
单项选择题Initial stability refers to stability（）.
A.at small angles of inclination B.when loaded with minimum deck load C.when at transit draft D.when GZ is zero
