The average height of the surface of the sea for all stages of the tide over a 19 year period is called（）.

A、mean high water

B、mean low water

C、half-tide level

D、mean sea level

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更多“The average height of the surface of the sea for all stages of the tide over a 19 year period is called（）.”相关的问题

第1题

[单选题] Charted depth is the（）.

A、vertical distance from the tidal datum to the ocean bottom plus the height of the tide B、vertical distance from the tidal datum to the ocean bottom C、average height of water over a specified period of time D、average height of all low waters at a place

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第2题

[单选题] Charted depth is the （）.

A、vertical distance from the chart sounding datum to the ocean bottom，plus the height of tide B、vertical distance from the chart sounding datum to the ocean bottom C、average height of water over a specified period of time D、average height of all low waters at a place

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第3题

[单选题] Mean low water is the average height of（）.

A、the surface of the sea B、high waters and low waters C、all low waters D、the lower of the two daily low tides

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第4题

[] Mean high water is the average height of（）.

A、A.The higher high waters B、B.The lower high waters C、C.The lower of the two daily tides D、D.All high waters

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第5题

[] For a floating vessel,true mean draft is always the（）.

A、A.average of the observed drafts B、B.draft at the centre of flotation C、C.draft corresponding to the center of buoyancy D、D.metacentric height

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第6题

[单选题] The difference between the height of the metacenter and the height of the center of gravity is known as the（）.

A、metacentric height B、height of the righting arm C、fore and aft perpendicular D、height of the center of buoyancy

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第7题

[单选题] The important initial stability parameter，GM，is the（）.

A、metacentric height B、height of the metacenter above the keel C、height of the center of buoyancy above the keel D、height of the center of gravity above the keel