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The soundings on the chart are based on the depth of water available at ______.A.mean low waterB.mean lower low waterC.mean high waterD.mean high water springs

题目

The soundings on the chart are based on the depth of water available at ______.

A.mean low water

B.mean lower low water

C.mean high water

D.mean high water springs

相似考题

1.Clearance gauges at bridges indicate ______.A.the height of the tideB.depth of water under the bridgeC.charted vertical clearance at mean low waterD.distance from the water to low steel of the bridge

2.The height of tide is the ______.A.depth of water at a specific time due to tidal effectB.difference between the depth of the water and the area's tidal datumC.difference between the depth of the water and the high water tidal levelD.difference between the depth of the water at high tide and the depth of the water at low tide

3.Charted depth is the ______.A.vertical distance from the chart sounding datum to the ocean bottom，plus the height of tideB.vertical distance from the chart sounding datum to the ocean bottomC.average height of water over a specified period of timeD.average height of all low waters at a place

4.The height of a light is measured from which reference plane?A.Mean low waterB.Mean high waterC.Average water levelD.Geographical sea level

参考答案和解析
正确答案：B
更多“The soundings on the chart are based on the depth of water available at ______.A.mean low ”相关问题

  • 第1题：

    The heights and soundings of Admiralty chart are expressed ______ in Fathoms ______ in Meters．

    A.either，or

    B.neither，nor

    C.another，nor

    D.other，or


    正确答案：A

  • 第2题：

    The recording fathometer produces a graphic record of the ______．

    A.bottom contour only up to depths of 100 fathoms

    B.depth underneath the keel against a time base

    C.contour of the bottom against a distance base

    D.depth of water against a distance base


    正确答案：B

  • 第3题：

    When taking soundings on a ship，coating the tape with chalk helps to ______．

    A.Better identify the correct reading

    B.Show the depth of any water in an oil tank

    C.Make the tape roll easier

    D.Reduce possibility of sparks


    正确答案：A

  • 第4题：

    Chart depth is the ______.

    A.vertical distance from the tidal datum to the ocean bottom, plus the height of 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


    正确答案：B
    海图标注水深是自潮高基准面到海底的垂直距离。

  • 第5题：

    In what units are heights and soundings in the chart? They are in ______.

    A.meters and fathoms

    B.fathoms and meters

    C.meter and fathom

    D.fathom and meter


    正确答案：A
    海图上测深是用什么单位表示？用米和拓。

  • 第6题：

    单选题
    When anchoring,it is a common rule of thumb to use a length of chain（）.
    A

    five to seven times the depth of water

    B

    seven to ten times the depth of water

    C

    twice the depth of water

    D

    twice the depth of water plus the range of tide


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Air gap is the vertical distance between the bottom of the hull and the（）.
    A

    still water level

    B

    wave crest

    C

    wave crest plus the charted water depth and tidal corrections

    D

    wave crest plus the charted water depth and tidal correction and storm surge


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    The height of tide is the （）.
    A

    depth of water at a specific time due to tidal effect

    B

    difference between the depth of the water and the area's tidal datum

    C

    difference between the depth of the water and the high water tidal level

    D

    difference between the depth of the water at high tide and the depth of the water at low tide


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    The controlling depth of the river is（）.
    A

    the minimum depth of the river prescribed in the channel maintenance program

    B

    the edge of a dredged channel

    C

    the highest level to which the river may rise without flooding

    D

    the least available water in a channel which limits the draft of boats and tows


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    In determining a safe speed（）shall not be among those taken into account.
    A

    the presence of the background light at night

    B

    the state of wind，sea and current

    C

    the number of crew on board

    D

    the draught in relation to the available depth of water


    正确答案： B
    解析： 暂无解析

  • 第11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


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    The soundings on the imperial chart are measured in（）.
    A

    Feet

    B

    Yards

    C

    Fathoms

    D

    Meters


    正确答案： B
    解析： 暂无解析

  • 第13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


    正确答案：B

  • 第14题：

    Air gap is the vertical distance between the bottom of the hull and the ______．

    A.Still water level

    B.Wave crest

    C.Wave crest plus the charted water depth and tidal corrections

    D.Wave crest plus the charted water depth and tidal correction and storm surge


    正确答案：A

  • 第15题：

    All echo-sounders can measure the ______．

    A.Actual depth of water

    B.Actual depth of water below keel

    C.Average depth from waterline to hard bottom

    D.Average depth of water to soft bottom


    正确答案：B

  • 第16题：

    Chart 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


    正确答案：B
    海图标注水深是自海图图深基准面到海底的垂直距离。

  • 第17题：

    单选题
    The heights and soundings of Admiralty chart are expressed（）in Fathoms（）in Meters．
    A

    either，or

    B

    neither，nor

    C

    another，nor

    D

    other，or


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    In moderate wind and current what should be the length of chain with a single anchor?（）
    A

    5 times the depth of the water in good holding ground

    B

    10 times the depth of the water in shallow water

    C

    2 times the depth of the water in poor holding ground

    D

    8 times the depth of the water in deep water


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    You want to create a pie-style chart using the Chart Wizard. What must be you do to determine the fields available for use in this chart? （）
    A

    Select the block that contains the data to appear in the pie chart. 

    B

    Select the table that contains the data to appear in the pie chart. 

    C

    Select the view that contains the data to appear in the pie chart. 

    D

    Nothing. The wizard will automatically create the pie chart based on the highlighted data.


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    Stand of the tide is that time when（）.
    A

    the vertical rise or fall of the tide has stopped

    B

    slack water occurs

    C

    tidal current is at a maximum

    D

    the actual depth of the water equals the charted depth


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    The soundings on the chart are based on the depth of water available at （）.
    A

    mean low water

    B

    mean lower low water

    C

    mean high water

    D

    mean high water springs


    正确答案： B
    解析： 暂无解析

  • 第22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


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    All echo-sounders can measure the（）.
    A

    actual depth of water

    B

    actual depth of water below keel

    C

    average depth from waterline to hard bottom

    D

    average depth of water to soft bottom


    正确答案： B
    解析： 暂无解析

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