单项选择题
（）is the vertical distance measured on the vessel’s side amidships from the load water line to the upper side of the freeboard deck or a point corresponding to it.
A.Buoyancy
B.Freeboard
C.Draft
D.Displacement
相关考题
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单项选择题
Your vessel is damaged and is listing to port. The rolling period is short. There is sufficient freeboard so that deck edge submersion is not a problem. What corrective action should be taken FIRST in regard to the vessel’s stability?（）.
A.Press up any slack double-bottom tanks to eliminate free surface
B.Flood any empty double-bottom tanks to add weight low and down
C.Jettison topside weights to reduce KG and KB
D.Shift any off-center weights from port to starboard -
单项选择题
Your vessel is damaged and listing to port. There is a short rolling period around the angle of list. The portside freeboard is reduced to 1 foot. There is no trim and the weather is calm. You should FIRST（）.
A.press up a slack double bottom tank on the port side
B.fill an empty centerline double bottom tank
C.pump out a slack marine portable tank located on the portside amidships
D.jettison the anchors and anchor cables -
单项选择题
Your vessel is damaged，listing to port and on occasion flopping to the same angle to starboard. It has a long，slow，sluggish roll around the angle of list. There is excessive trim by the stern with little freeboard aft. What action should you take?（）.
A.Jettison any off-center topside weights to lower GM and correct the list
B.Pump out any slack after double-bottom tanks to reduce free surface and increase freeboard aft
C.Pump out the after peak and fill the forepeak to change the trim
D.Press up any slack double-bottom tanks forward of the tipping center，then fill the forepeak if empty
