itgle.com

The distance between the surface of the water and the tidal datum is the ______.A.range of tideB.height of tideC.charted depthD.actual water depth

题目

The distance between the surface of the water and the tidal datum is the ______.

A.range of tide

B.height of tide

C.charted depth

D.actual water depth

相似考题

1.The distance between the surface of the water and the tidal datum is the______．A.height of tideB.charted depthC.actual water depthD.range of tide

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 distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the ______.A.air gapB.freeboardC.penetrationD.water depth

4.Coalescence(聚合) is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and ______in size.A.expandB.extractC.increaseD.decrease

参考答案和解析
正确答案：B
更多“The distance between the surface of the water and the tidal datum is the ______.A.range of ”相关问题

  • 第1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：B

  • 第2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：B

  • 第3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4题：

    共用题干
    Weight on and off the Earth We are so used to.our life on the surface of the earth that it can be quite an effort for our mind to break free of all the ideas that we take for granted.Because we can feel that things are heavy,we think of "weight"as being a fixed quality in an object,but it is not really fixed at all.If you could take a one-pound packet of butter 4,000 miles out from the earth,it would weigh only a quarter of a pound. Why would things weigh only a quarter as much as they do at the surface of the earth if we took them 4,000 miles out into space?The reason is this:all objects have a natural attraction for all other objects;this is called gravitational attraction.But this power of attraction between two obects gets weaker as they get farther apart.When the butter was at the surface of the earth,it was 4,000 miles from the center.When we took the butter 4,000 miles out,it was 8,000 miles from the center,which is twice the distance.If you double the distance between two objects,their gravitational attraction decreases two times two.If you treble the distance, it gets nine times weaker(three times three)and so on. So this is one of the first things we need to remember that the weight of an object in space is not the same as its weight on the surface of the earth. What about the weight of our pound of butter on the surface of the moon?At the distance the puii of the earth is about 4,000 times smaller than it is here on the surface,so we can forget all about the earth-pull on our butter. On the other hand,on the moon there will be an attraction between the butter and the moon,but the butter will weigh only about one-sixth as much as it does on the earth.This is because the moon is so much smaller than the earth.The amount of gravitational pull that a body produces depends on the amount of material in it.A packet of butter has a gravitational pull of its own;but this is very small in relation to the pull of something as large as the moon,or the earth,or the sun.

    According to the passage,"weight"should be understood in the sense that
    A:it is fixed if it is outside the earth's gravitational puli
    B:it decreases four times when it is 4,000 miles from the earth's center
    C:it varies with the change of the gravitational attraction between two objects
    D:things increase in amount as they are closer to the earth's surface

    答案：C
    解析：
    第一段最后一句表明，1磅重的黄油在离地球表面4000英里处重达0.25磅，第二段第一句也表明在4000英里高空处的物体重量仅为其在地球表面的重量的1/4。由此可推算出，4磅重的茶叶在离地球表面4000英里处重达1磅。
    第一段第一句表明，我们之所以不能打破固有思维，是因为我们已经习惯了地球上的生活，也就是说，我们正是因为太过熟悉地球上的事物，才没有去质疑这些固有思维。
    第一段第二句表明，物体的重量并非固定不变。第二段解释说，物体的重量源于物体间的引力。也就是说，物体的重量随着物体间引力的改变而改变。
    最后一段第三句说明一个物体产生的引力与物体本身的重量有关。最后一段第四句又表明由于本身重量较小，一包黄油产生的引力很有限，相对于月球、地球、太阳等产生的强劲引力来说，比较容易被我们忽略。
    本篇文章通篇讲的是重量是由引力产生的，并进一步阐述了物体间引力的变化、物体本身的重量，以及物体间的距离这三者之间的关系，主要讲的还是引力对重量的作用。

  • 第5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6题：

    单选题
    The distance between rivets in a row is known as the（）.
    A

    arm

    B

    pitch

    C

    gage

    D

    rivet distance


    正确答案： C
    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
    When we say that two objects have relative motion, we mean （）.
    A

    the distance between them remains the same

    B

    the distance between them is changing

    C

    the position between them is not changing

    D

    their positions to the earth remain the same


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    _____ most of the earth's surface is covered by water, fresh water is very rare and precious.
    A

    As

    B

    Once

    C

    If

    D

    Although


    正确答案： B
    解析：

  • 第10题：

    单选题
    Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and （） in size.
    A

    expand

    B

    extract

    C

    increase

    D

    decrease


    正确答案： A
    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
    ECDIS must be able to perform all of the following EXCEPT（）.
    A

    determine true bearing and distance between two geographical points

    B

    determine magnetic compass deviation

    C

    transform a local datum to the WGS-'84 datum

    D

    convert graphical coordinates to display coordinates


    正确答案： D
    解析： 暂无解析

  • 第13题：

    The period at high or low tide during which there is no change in the height of the water is called the ______.

    A.range of the tide

    B.plane of the tide

    C.stand of the tide

    D.reversing of the tide


    正确答案：C

  • 第14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15题：

    When referring to quantity of barite in a P-tank，ullage is the ______．

    A.Distance of the barite surface above the tank bottom

    B.Percentage of barite in the tank

    C.Distance of the barite surface below the tank cover

    D.Total weight of barite in UPC（ullages per centimeter）


    正确答案：C

  • 第16题：

    线间距离 distance between tracks


    正确答案: 指两相邻线路中心线间的距离。

  • 第17题：

    单选题
    In stopping distances of vessels，head reach can best be described as the（）.
    A

    difference between the vessel's speed through the water at any instant and the new speed ordered on the telegraph

    B

    distance the vessel has actually run through the water since a change of speed was ordered

    C

    distance the vessel will run between taking action to stop her and being stationary in the water

    D

    speed at which a vessel should proceed to ensure that she will run a predetermined distance，once her engines have been stopped


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    The boat is （）to the water surface.
    A

    down

    B

    top

    C

    lower

    D

    up


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    If you swim in a river or lake, be sure to investigate________is below the water surface. Often there are rocks or branches hidden in the water.
    A

    what

    B

    who

    C

    that

    D

    whoever


    正确答案： C
    解析：

  • 第20题：

    单选题
    The distance between the surface of the water and the tidal datum is the （）.
    A

    range of tide

    B

    height of tide

    C

    charted depth

    D

    actual water depth


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    The height of a wave is the vertical distance（）.
    A

    from the still water plane to the crest

    B

    from the still water plane to the trough

    C

    from crest to trough

    D

    between water levels at one-quarter of the wave's length


    正确答案： C
    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
    In determining the scope of anchor line to pay out when anchoring a small boat，one must consider the（）.
    A

    charted depth of water only

    B

    depth of water，including tidal differences

    C

    time and date of anchoring

    D

    type of anchor being used


    正确答案： A
    解析： 暂无解析

相关内容