When using horizontal sextant angles of three objects to fix your position，an indeterminate position will result in which situation ________．A.The objects lie in a straight lineB.The vessel is inside of a triangle formed by the objectsC.The vessel is outs

题目

When using horizontal sextant angles of three objects to fix your position，an indeterminate position will result in which situation ________．

A.The objects lie in a straight line

B.The vessel is inside of a triangle formed by the objects

C.The vessel is outside of a triangle formed by the objects

D.A circle will pass through your position and the three objects

相似考题

1.If the acquisition symbol flashes three times when acquisition is attempted，it may be possible that the acquisition symbol ________ over the navigation mark．A.is not positioned properlyB.is not a fixed positionC.is not at a position fixedD.is a wrong position

2.You are running parallel to the coast and take a running fix using bearings of the same object．If you are making less speed than used for the running fix，in relation to the position indicated by the fix，you will be ______．A.Closer to the coastB.Farther from the coastC.On the track line ahead of the fixD.On the track line behind the fix

3.When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of ______．A.10 metersB.20 metersC.50 metersD.100 meters

4.When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to ______.A.the meridian through the object of the bearingB.the meridian through the ship's positionC.the meridian midway between the ship and the objectD.any meridian

更多“When using horizontal sextant angles of three objects to fix your position,an indeterminat ”相关问题

  • 第1题：

    A vessel’s position should be plotted using bearings of ______.

    A.buoys close at hand

    B.fixed known objects on shore

    C.buoys at a distance

    D.All of above


    正确答案：B
    船舶的位置应该用一、已知岸上固定物标方位来表示

  • 第2题：

    Your customer has deployed a Cisco Wireless Location Appliance within its warehouse environment. However，employees there have been experiencing problems when tracking objects using active RFIDtags. The RFID tag data is not being collected. On which device would you verify that RFIDs have beenenabled？（）

    • A、Cisco WCS
    • B、access point
    • C、location manager
    • D、wireless controller

    正确答案:D

  • 第3题：

    单选题
    You should plot your dead reckoning position at（）.
    A

    every fix or running fix

    B

    every course change

    C

    every speed change

    D

    All of the above are correct


    正确答案： D
    解析： 暂无解析

  • 第4题：

    单选题
    At 0400 your vessel is dead in the water and in heavy fog. Your loran set fixes your position at LAT 41°12.1’N，LONG 72°43.5’W. Bottom samples are taken and indicate a composition of soft mud and shell. Your fathometer reads 40 feet. If the vessel draws 9 feet of water，which of the following is TRUE?（）
    A

    The bottom samples and fathometer reading prove the loran fix is reliable

    B

    The bottom samples and fathometer readings indicate that the loran fix is unreliable

    C

    The information collected indicates that the fathometer may be in error

    D

    The information collected indicates that the chart is most likely in error


    正确答案： A
    解析： 暂无解析

  • 第5题：

    单选题
    When your vessel is proceeding to the area of traffic density,（）is used to determine the exact ranges of other ships or objects in the vicinity.
    A

    radar

    B

    GPS

    C

    DF

    D

    satellite navigator


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    When using horizontal sextant angles of three objects to fix your position，an indeterminate position will result in which situation（）.
    A

    The objects lie in a straight line

    B

    The vessel is inside of a triangle formed by the objects

    C

    The vessel is outside of a triangle formed by the objects

    D

    A circle will pass through your position and the three objects


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    A position obtained by applying only your vessel’s coures and speed to a known position is a（）.
    A

    dead-reckoning position

    B

    fix B.estimated position

    C

    probable position

    D

    running fix


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    （）is used for measuring horizontal and vertical angles.
    A

    The marine sextant

    B

    Thechronometer

    C

    The magnetic compass

    D

    The gyrocompass


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    A single line of position combined with a dead-reckoning position results in a(n)（）.
    A

    estimated position

    B

    assumed position

    C

    fix

    D

    running fix


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    When using the lifeboat compass，you must be careful to（）.
    A

    set it on the centerline of the boat

    B

    apply the correction for compass error

    C

    keep metal objects away from it

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
    A

    10 meters

    B

    20 meters

    C

    50 meters

    D

    100 meters


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    A marine sextant has the index arm set at zero and the reflected image of the horizon forms a continuous line with the actual image. When the sextant is rotated about the line of sight the images separate. The sextant has（）.
    A

    error of perpendicularity

    B

    side error

    C

    prismatic error

    D

    centering error


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Your customer has deployed a cisco wireless location appliance within its warehouse  environment. however， employees there have been experiencing problems when tracking objects using active rfid tags. you use an access point scan to determine if the location appliance has been deployed correctly. Making which change to warehouse deployment location services will most likely correct the problem？（）

    • A、ensure channels are deployed such that they do not overlap
    • B、allow for the automatic containment of rogue access points
    • C、ensure each area is covered by a minimum of three access points
    • D、ensure a minimum rssi value of -50

    正确答案:C

  • 第14题：

    What are three relevant design considerations when using the 15216 EDFA? （）(Choose three.)

    • A、dispersion
    • B、Optical SNR
    • C、span attenuation
    • D、four wave mixing
    • E、receiver sensitivity

    正确答案:B,C,E

  • 第15题：

    单选题
    You should plot your dead reckoning position（）.
    A

    From every fix or running fix

    B

    From every estimated position

    C

    Every three minutes in pilotage waters

    D

    Only in pilotage waters


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    A line of position is（）.
    A

    a line connecting two charted objects

    B

    a line on some point of which the vessel may be presumed to be located

    C

    the position of your vessel

    D

    not used in a running fix


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
    A

    the meridian through the object of the bearing

    B

    the meridian through the ship's position

    C

    the meridian midway between the ship and the object

    D

    any meridian


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    You are running parallel to the coast and take a running fix using bearings of the same object.If you are making less speed than used for the running fix，in relation to the position indicated by the fix，you will be（）.
    A

    Closer to the coast

    B

    Farther from the coast

    C

    On the track line ahead of the fix

    D

    On the track line behind the fix


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    A position obtained by applying only your vessel’s course and speed to a known position is a （）.
    A

    dead-reckoning position

    B

    fix

    C

    probable position

    D

    running fix


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    In plotting a running fix，how many fixed objects are needed to take your lines of position from? （）
    A

    Three

    B

    Two

    C

    One

    D

    None


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    A vessel’s position should be plotted using bearings of（）.
    A

    buoys close at hand

    B

    fixed known objects on shore

    C

    buoys at a distance

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第22题：

    多选题
    What are three relevant design considerations when using the 15216 EDFA? （）(Choose three.)
    A

    dispersion

    B

    Optical SNR

    C

    span attenuation

    D

    four wave mixing

    E

    receiver sensitivity


    正确答案： D,C
    解析： 暂无解析

  • 第23题：

    单选题
    When using the radar for navigating（）.
    A

    the best fix is obtained by using a tangent bearing and a range

    B

    and using two radar ranges for a fix，the objects of the ranges should be close to reciprocal bearings

    C

    and using ranges，the most rapidly changing range should be measured last

    D

    and crossing a radar range of one object with the visual bearing of a second object，the two objects should be 80°to 110°apart


    正确答案： C
    解析： 暂无解析

  • 第24题：

    单选题
    When out of sight of land, a ship’s position can be found by using（）.
    A

    the coastal navigation

    B

    the celestial navigation

    C

    traditional navigation

    D

    the great circle navigation


    正确答案： A
    解析： 暂无解析

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