海上货物运输 - 船舶浮性

单选题

对于普通货船，每厘米吃水吨数TPC通常随吃水增大而（）。

A. 增加
B. 不变
C. 减少
D. B均是

单选题

An unstable upright equilibrium position on a vessel means that the metacenter is（）.

A. lower than the center of gravity
B. at the same height as the center of gravity
C. higher than the baseline
D. on the longitudinal centerline

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单选题

The difference between the starboard and port drafts due to wind or seas is called（）.

A. list
B. heel
C. trim
D. flotatio

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单选题

The TPC curve，one of the hydrostatic curves in a vessel’s plans，gives the number of tons（）.

A. necessary to change the angle of list 1°at a given draft
B. necessary to change trim 1 cm at a given draft
C. pressure per square cm on the vessel's hull at a given draft
D. necessary to further immerse the vessel 1 cm at a given draft

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单选题

The term length of a vessel in International Regulations for Preventing Collision at Sea 1972 means（）.

A. the length between perpendiculars
B. the registered length
C. the length overall
D. the length of waterplane on summer draft

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单选题

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 tensio

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单选题

某轮首、中、尾的吃水分别是：6.45m，6.60m，6.50m，且存在拱垂，则其平均吃水为（）m。

A. 6.60
B. 6.57
C. 6.48
D. 3.26

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单选题

The waterplane area is described as the intersection of the surface of the water in which a vessel floats and the（）.

A. baseline
B. vertical reference plane
C. hull
D. horizontal reference plane

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单选题

某轮在某装载状态下的一处水线位于水尺标志“Ⅷ”字体高度一半处，则该处的吃水为（）。

A. 8.00m
B. 8.05m
C. 8英尺3英寸
D. 8英尺6英寸

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单选题

当船舶某装载状态下的某处水线达到水尺标志的数字的（）处时，则该处的吃水为该数字加上5cm。

A. 中间
B. 顶边缘
C. 底边缘
D. 1/3处

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