單項(xiàng)選擇題Load line regulations are designed to insure that a vessel has adequate structural strength and sufficient（）.

A.lifesaving equipment
B.stability
C.mooring tension
D.riser tension


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1.單項(xiàng)選擇題In the absence of external forces，the center of gravity of a floating vessel is located directly above the（）.

A.metacenter
B.amidships
C.center of flotation
D.geometric center of the displaced volume

2.單項(xiàng)選擇題If the vertical center of gravity (VCG) of a ship rises 1.7 feet，the righting arm (GZ) for the various angles of inclination will（）.

A.decrease
B.increase
C.remain unchanged
D.be changed by the amount of GG' x cosine of the angle

3.單項(xiàng)選擇題From（）the information concerning the tons per inch or centimeter immersion of a vessel shall be usually found.

A.Stability curve
B.Deadweight scale
C.Table of Azimuth
D.Freeboard assignment

4.單項(xiàng)選擇題For a floating vessel，the result of subtracting KG from KM is the（）.

A.height of the metacenter
B.height of the righting arm
C.height of the center of buoyancy
D.metacentric height

5.單項(xiàng)選擇題For a floating vessel，the center of flotation is the point in the waterplane（）.

A.about which the vessel lists and trims
B.which coincides with the center of buoyancy
C.which，in the absence of external forces，is always vertically aligned with the center of gravity
D.which is shown in the hydrostatic tables as VCB