The numeral in the center of a wind rose circle on a pilot chart indicates the ______.A.total number of observationsB.average wind force on the Beaufort scaleC.average wind force in knotsD.percentage of calms

题目

The numeral in the center of a wind rose circle on a pilot chart indicates the ______.

A.total number of observations

B.average wind force on the Beaufort scale

C.average wind force in knots

D.percentage of calms

相似考题

1.A pilot chart does NOT contain information about ______.A.average wind conditionsB.tidal currentsC.magnetic variationD.average limits of field ice

2.Solid green arrows on the main body of a pilot chart indicate ______.A.prevailing wind directionsB.prevailing ocean current directionsC.probable surface current flowD.shortest great circle routes

3.The compass rose on a nautical chart indicates both variation and ______.A.deviationB.annual rate of variation changeC.precessionD.compass error

4.Magnetic information on a chart may be ______.A.found in the center(s) of the compass rose(s)B.indicated by isogonic linesC.found in a note on the chartD.All of the above

参考答案和解析
正确答案：D
更多“The numeral in the center of a wind rose circle on a pilot chart indicates the ______.A.to ”相关问题

  • 第1题：

    What is the major advantage of a rhumb line track?

    A.The vessel can steam on a constant heading (disregarding wind，current，etc)

    B.The rhumb line is the shortest distance between the arrival and departure points

    C.It is easily plotted on a gnomonic chart for comparison with a great circle course

    D.It approximates a great circle on east-west courses in high latitudes


    正确答案：

  • 第2题：

    In the Northern Hemisphere, when the wind at your location is northerly, the low pressure center causing the wind is located to your ______.

    A.NNW

    B.WSW

    C.ESE

    D.SSW


    正确答案：C
    在北半球，你所在位置有北风，由低压引起的风，低压中心在你的ESE。

  • 第3题：

    引水员的房间在驾驶台隔壁。（）

    • A、The pilot room is next to the chart room.
    • B、The pilot room is next to the wheelhouse .
    • C、The pilot room is next to the captain’s cabin.

    正确答案:B

  • 第4题：

    单选题
    引航员的房间在驾驶台隔壁。（）
    A

    The pilot room is next to the chart room.

    B

    The pilot room is next to the wheelhouse .

    C

    The pilot room next to the captain’s cabin.

    D

    The pilot room next to the wheelhouse .


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.
    A

    Expect to see cirrus clouds followed by altostratus and nimbostratus clouds

    B

    Alter course to remain in the navigable semicircle

    C

    Prepare for gusty winds，thunderstorms，and a sudden wind shift

    D

    Expect clear weather，with steady winds and pressure，until the front passes


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    A chart position enclosed by a semi-circle is a(n) （）.
    A

    fix

    B

    estimated position

    C

    dead reckoning position

    D

    running fix


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    A circle with center A has its center at (6, -2) and a radius of 4. Which of the following is the equation of a line tangent to the circle with center A ?
    A

    y＝3x+2

    B

    y＝2x+1

    C

    y＝-x+5

    D

    y＝-2

    E

    y＝-6


    正确答案： A
    解析：
    切线指与圆相交且与圆只有一个焦点的线。A、B与圆不相交。C、D 与圆相交且有两个交点。只有E项符合。

  • 第8题：

    单选题
    The compass rose on a nautical chart indicates both variation and （）.
    A

    deviation

    B

    annual rate of variation change

    C

    precession

    D

    compass error


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    Which chart symbol indicates the bottom is clay（）.
    A

    Cly

    B

    Cla

    C

    Cl

    D

    C


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    The numeral in the center of a wind rose circle on a pilot chart indicates the （）.
    A

    total number of observations

    B

    average wind force on the Beaufort scale

    C

    average wind force in knots

    D

    percentage of calms


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Magnetic information on a chart may be （）.
    A

    found in the center(s) of the compass rose(s)

    B

    indicated by isogonic lines

    C

    found in a note on the chart

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    Which aid is NOT marked on a chart with a magenta circle? （）
    A

    Aero light

    B

    Radar station

    C

    Radar transponder beacon

    D

    Radiobeacon


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Positions read from this chart should be moved 0．08 minutes Southward and 0．13 minutes Eastward so as ______ adjoining chart 344，．

    A.to agree upon

    B.in accordance with

    C.to be same as

    D.to agree with


    正确答案：D

  • 第14题：

    The （）is next to the chart room.

    • A、engine room
    • B、cook room
    • C、saloon
    • D、pilot room

    正确答案:D

  • 第15题：

    引航员的房间在驾驶台隔壁。（）

    • A、The pilot room is next to the chart room.
    • B、The pilot room is next to the wheelhouse .
    • C、The pilot room next to the captain’s cabin.
    • D、The pilot room next to the wheelhouse .

    正确答案:B

  • 第16题：

    单选题
    On a nautical chart，the inner ring of a compass rose indicates（）.
    A

    true directions

    B

    compass error

    C

    deviation

    D

    magnetic directions


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    Solid green arrows on the main body of a pilot chart indicate （）.
    A

    prevailing wind directions

    B

    prevailing ocean current directions

    C

    probable surface current flow

    D

    shortest great circle routes


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    引水员的房间在驾驶台隔壁。（）
    A

    The pilot room is next to the chart room.

    B

    The pilot room is next to the wheelhouse .

    C

    The pilot room is next to the captain’s cabin.


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    An instrument that indicates wind direction is known as a(n)（）.
    A

    weather vane，wind vane or wind sock

    B

    hydrometer

    C

    hygrometer

    D

    sling psychrometer


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    All straight lines represent great circle tracks on a chart based on a(n) （）.
    A

    Mercator projection

    B

    polyconic projection

    C

    orthographic projection

    D

    gnomonic projection


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    Two circles, P and Q, lie in the same plane. If the center of circle Q lies on circle P, then in how many points could circle P and circle Q intersect?Ⅰ. 0Ⅱ. 1Ⅲ. 2
    A

    Ⅰ only

    B

    Ⅱ only

    C

    Ⅲ only

    D

    Ⅰ, Ⅱ and Ⅲ

    E

    Ⅱ and Ⅲ only


    正确答案： E
    解析：
    If the radius of circle Q is greater than the diameter of circle P, there is no intersection point. If the radius of circle Q is equal to the diameter of circle P, there is one intersection point. If the radius of circle Q is less than the diameter of circle P, there are two intersection points.

  • 第22题：

    单选题
    In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
    A

    NNW

    B

    WSW

    C

    ESE

    D

    SSW


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    A pilot chart does NOT contain information about （）.
    A

    average wind conditions

    B

    tidal currents

    C

    magnetic variation

    D

    average limits of field ice


    正确答案： B
    解析： 暂无解析

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