單項(xiàng)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


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1.單項(xiàng)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

2.單項(xiàng)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

3.單項(xiàng)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

4.單項(xiàng)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

5.單項(xiàng)選擇題（）refers to the tendency of a body of the ship to return to its original position after it is displaced therefrom.

A.Stability
B.Responsibility
C.Liability
D.Visibility