单选题The velocity of a rotary tidal current will be decreased when the Moon is（）.A at apogeeB newC fullD All of the above

题目
单选题
The velocity of a rotary tidal current will be decreased when the Moon is（）.
A

at apogee

B

new

C

full

D

All of the above

相似考题

1.The navigational term Set of current means ______.A.velocity of current in knotsB.direction from which the current flowsC.estimated currentD.direction toward which the current flows

2.You will find information about the duration of slack water in the ______.A.Tidal Current TablesB.Tide TablesC.American Practical NavigatorD.Sailing Directions

3.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

4.Set of current is ________ ．A.its velocity in knotsB.direction from which it flowsC.estimated currentD.direction toward which it flows

更多“The velocity of a rotary tidal current will be decreased whe”相关问题

  • 第1题：

    Data relating to the direction and velocity of rotary tidal currents can be found in the ______.

    A.Mariner's Guide

    B.Tidal Current Tables

    C.Nautical Almanac

    D.Tide Tables


    正确答案：B

  • 第2题：

    A tow can override its tug as a result of ______.

    A.a mechanical breakdown on the tug

    B.adverse tidal current conditions

    C.the tug reducing its speed

    D.All of the above


    正确答案：D

  • 第3题：

    ______ offers a detailed description of tidal theory and its application to the analysis and prediction of tides and tidal streams．

    A.Ocean Passages for the World（NP136）

    B.Admiralty Tidal Stream Atlases

    C.Admiralty Manual of Tides（NP120）

    D.Admiralty Tidal Handbooks（NP122 1-3）


    正确答案：C

  • 第4题：

    潮流脊（tidal ridge）


    正确答案: 一般说来，潮流脊形成区域海水深度不大，潮流流速较强并有丰富的沉积物来源。潮流流向平行与沙脊，在沙脊之间的深槽中产生螺旋形环流，该环流使得底层水流从深槽中心流向沙脊上部，从而使泥沙也从槽底被带向沙脊上部，导致槽底刷深而沙脊则进一步堆积增高，甚至出露水面形成沙洲。

  • 第5题：

    单选题
    The velocity of a rotary tidal current will be decreased when the Moon is（）.
    A

    at apogee

    B

    new

    C

    full

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    Sidewise force of the propeller tends to throw a vessel’s stern to the right or left，depending on rotation. This force is caused by（）.
    A

    back current from the rudder

    B

    greater pressure on the right or left side of the propeller，depending on rotation

    C

    lower pressure on the right or left side of the propeller，depending on rotation

    D

    torque from the velocity and angle at which the surrounding water impinges upon the propeller blades


    正确答案： B
    解析： 暂无解析

  • 第7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8题：

    单选题
    （）offers a detailed description of tidal theory and its application to the analysis and prediction of tides and tidal streams.
    A

    Ocean Passages for the World

    B

    Admiralty Tidal Stream Atlases

    C

    Admiralty Manual of Tides

    D

    Admiralty Tidal Handbooks


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.
    A

    temperature

    B

    density

    C

    deflection

    D

    speed


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Reduced voltage applied to a motor during the starting period will （）.
    A

    result in decreased acceleration time only

    B

    lower the starting current and increase accelerating time

    C

    cause a greater starting torque

    D

    increase the starting current and pump capacity


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    The type of current which will have the greatest effect on the course made good for your vessel is（）.
    A

    one flowing in the same direction as your course steered

    B

    one flowing in the opposite direction as your course steered

    C

    one that flows at nearly right angles to your course steered

    D

    a rotary current in which the direction of current flow constantly changes


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    The velocity of the current in large coastal harbors is（）.
    A

    predicted in Tidal Current Tables

    B

    unpredictable

    C

    generally constant

    D

    generally too weak to be of concern


    正确答案： B
    解析： 暂无解析

  • 第13题：

    A swift current occurring in a narrow passage connecting two large bodies of water，which is produced by the continuously changing difference in height of tide at the two ends of the passage，is called a ______.

    A.hydraulic current

    B.rectilinear current

    C.rotary current

    D.harmonic current


    正确答案：A

  • 第14题：

    If you are sailing from the East Coast of the United States to the Caribbean Sea，which publication would contain information on weather，currents，and storms?

    A.Sailing Charts of the Caribbean Sea

    B.Pilot Charts of the North Atlantic

    C.Light Lists，Atlantic and Gulf Coast

    D.Tidal Current Tables


    正确答案：B

  • 第15题：

    The major tidal streams for selected waters of North West Europe are shown in diagrammatic form in ______．

    A.Admiralty Tidal Stream Atlases

    B.Admiralty Tidal Stream Atlases

    C.Admiralty Manual of Tides（NP120）

    D.Admiralty Tidal Handbooks（NP122 1-3）


    正确答案：A

  • 第16题：

    在SQLServer数据库中，HAVING和WHERE子句以及GROUPBY可以在同一SELECT语句中使用，其正确的先后顺序为（）

    • A、GROUP BY WHERE HAVING
    • B、WHE REGROUP BY HAVING
    • C、WHE REHAVING GROUP BY
    • D、HAVING WHERE GROUP BY

    正确答案:B

  • 第17题：

    单选题
    Set of current is（）.
    A

    its velocity in knots

    B

    direction from which it flows

    C

    estimated current

    D

    direction toward which it flows


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    The drift and set of tidal，river，and ocean currents refer to the（）.
    A

    position and area of the current

    B

    speed and direction toward which the current flows

    C

    type and characteristic of the current's flow

    D

    None of the above


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    根据IBM的定义，大数据的4V特征是（）。
    A

    Volume、Velocity、Variety、Veracity

    B

    Valid、Velocity、Variety、Veracity

    C

    Volume、Valid、Variety、Veracity

    D

    Volume、Velocity、Variety、Valid


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    （）outlines the Admiralty method of Harmonic tidal analysis for long and short observation periods plus a volume on datums for hydrographic surveys.
    A

    Ocean Passages for the World

    B

    Admiralty Tidal Stream Atlases

    C

    Admiralty Manual of Tides

    D

    Admiralty Tidal Handbooks


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    The spray of water in low-velocity fog will have（）.
    A

    greater range than high-velocity fog

    B

    lesser range than high-velocity fog

    C

    about the same range as high-velocity fog

    D

    greater range than a solid stream


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    A

    How destructive tidal waves are.

    B

    The cause of tidal waves.

    C

    What a true tide is.

    D

    Why there is seaquake.


    正确答案： B
    解析：
    [考点]主旨题。文章通篇都是在讲海啸的形成原理，故文章的主题为B项。

  • 第23题：

    单选题
    Data relating to the direction and velocity of rotary tidal currents can be found in the （）.
    A

    Mariner's Guide

    B

    Tidal Current Tables

    C

    Nautical Almanac

    D

    Tide Tables


    正确答案： C
    解析： 暂无解析

  • 第24题：

    单选题
    A rotary current sets through all directions of the compass. The time it takes to complete one of these cycles is approximately（）.
    A

    3 hours

    B

    6 1/2 hours

    C

    12 1/2 hours

    D

    25 hours


    正确答案： A
    解析： 暂无解析

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