A.8.5°
B.17°
C.34°
D.51°
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A.intact stability
B.initial stability
C.immersion stability
D.damage stability
A.submerged hulls
B.column void spaces
C.dry mud tanks
D.ballast tanks
A.turning effect of the force about a point
B.instantaneous value of the force
C.stability characteristics of the vessel
D.center of gravity location
A.the limit of positive stability
B.the limit of small-angle stability
C.maximum offset
D.downflooding
A.metacentric height
B.height of the metacenter above the keel
C.height of the center of buoyancy above the keel
D.height of the center of gravity above the keel
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When a vessel has positive stability，the distance between the line of force through B and the line of force through G is called the（）.
The time required to incline from port to starboard and back to port again is called（）.
The important initial stability parameter，GM，is the（）.
During a stability test on a small passenger vessel（）.
The downflooding angle for a ship is the maximum angle at which（）.
The angle of loll is a stability term which applies to a floating ship with（）.
The static stability curve for a given vessel peaks at 34°. For this ship，the danger angle for a permanent list would be about（）.
The effect of free surface on initial stability depends upon（）.
Repair of vital machinery and services on a ship should be accomplished（）.
Initial stability of a vessel may be improved by（）.