某轮排水量Δ=17272t，由密度为ρ1=1.014g/cm3的水域驶入密度为ρ2=

【名词&注释】

排水量(displacement)

[单选题]某轮排水量Δ=17272t，由密度为ρ1=1.014g/cm3的水域驶入密度为ρ2=1.002g/cm3，每厘米吃水吨数TPC=24.18t，则其平均吃水改变量为（）m。

A. A．0.061
B. B．0.069
C. C．0.078
D. D．0.086

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学习资料：

[单选题]船舶由海水水域驶入淡水水域时，船舶所受浮力（）。

A. A．减少
B. B．增加
C. C．不变
D. D．变化不定

[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

[单选题]The point to which your vessel’s center of gravity (G) may rise and still permit the vessel to have positive stability is called the（）.

A. metacentric point
B. metacenter
C. metacentric radius
D. tipping center

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