單項選擇題A partially full tank causes a virtual rise in the height of the（）.

A.metacenter
B.center of buoyancy
C.center of flotation
D.center of gravity


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1.單項選擇題A neutral equilibrium position for a vessel means that the metacenter is（）.

A.lower than the keel
B.at the same height as the center of gravity
C.exactly at midships
D.at the center of the waterplane area

2.單項選擇題A load line of a ship is assigned by（）.

A.Minerals Management Service
B.Department of Energy
C.Corps of Engineers
D.A recognized classification society approved

3.單項選擇題A floating vessel will behave as if all of its weight is acting downward through the（）.

A.center of gravity
B.center of buoyancy
C.center of flotation
D.metacenter

4.單項選擇題A continual worsening of the list or trim indicates（）.

A.negative GM
B.progressive flooding
C.structural failure
D.an immediate need to ballast

5.單項選擇題（）we have worked out the loading plan，we shall start doing more revision work.

A.For now
B.Ever since
C.Now that
D.By now