更多“A line of position derived by radar range from an identified point on a coast will be a(n) ”相关问题
  • 第1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:A

  • 第2题:

    单选题
    The common way to obtain your ship’s position is().
    A

    keeping a close watch and lookout

    B

    taking a radar range and bearing

    C

    observing a radar target and listening to signals

    D

    keeping a well clear caution


    正确答案: B
    解析: 暂无解析

  • 第3题:

    单选题
    A line of position from a celestial observation is a segment of a ().
    A

    circle of equal altitude

    B

    parallel of declination

    C

    parallel of altitude

    D

    vertical circle


    正确答案: C
    解析: 暂无解析

  • 第4题:

    单选题
    A line of position derived by radar range from an identified point on a coast will be a(n) ().
    A

    straight line

    B

    arc

    C

    parabola

    D

    line parallel to the coast


    正确答案: D
    解析: 暂无解析

  • 第5题:

    单选题
    A navigator fixing a vessel’s position by radar ().
    A

    can use radar information from one object to fix the position

    B

    should never use radar bearings

    C

    should only use radar bearings when the range exceeds the distance to the horizon

    D

    must use information from targets forward of the beam


    正确答案: C
    解析: 暂无解析

  • 第6题:

    单选题
    A star is observed at lower transit. The line of position derived from this sight is().
    A

    on the prime vertical

    B

    a latitude line

    C

    a longitude line

    D

    of no special significance


    正确答案: C
    解析: 暂无解析

  • 第7题:

    单选题
    A vessel is approaching from dead ahead. Both of her sidelights are visible and her range lights are in line. Which of the following could you do first?().
    A

    Sound one blast of the whistle

    B

    Alter course to starboard

    C

    Construct a radar plot

    D

    Sound the danger signal


    正确答案: D
    解析: 暂无解析

  • 第8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9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10题:

    单选题
    What provides little or no indication that a vessel is dragging anchor? ()
    A

    Increasing radar range to a fixed object ahead

    B

    Drift lead with the line leading perpendicular to the centerline

    C

    Vibrations felt by placing a hand on the cable

    D

    Changing bearings to distant fixed objects abeam


    正确答案: B
    解析: 暂无解析

  • 第11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12题:

    单选题
    A radar range to a small,charted object such as a light will provide a line of position in which form? ()
    A

    Straight line

    B

    Arc

    C

    Parabola

    D

    Hyperbola


    正确答案: B
    解析: 暂无解析

  • 第13题:

    A vessel is approaching from dead ahead.Both of her sidelights are visible and her range lights are in line. Which of the following could you do first? ______.

    A.Sound one blast of the whistle

    B.Alter course to starboard

    C.Construct a radar plot

    D.Sound the danger signal


    正确答案:B
    一船自正前方正在接近。她的两舷灯可见并桅灯成一线。你将首先采取以下什么措施?鸣放一短声(先A后B)

  • 第14题:

    单选题
    A signal derived from a controlled function and returned to the initiating point is called a/an ().
    A

    monitoring signal

    B

    inverse signal

    C

    reverse signal

    D

    feedback signal


    正确答案: A
    解析: 暂无解析

  • 第15题:

    单选题
    ()is an equipment used to detect the presence of ships ,buoys,coast and many other targels and to obtain range and bearing of these targets.
    A

    The marine sextant

    B

    The chronometer

    C

    The echo sounder

    D

    The radar


    正确答案: A
    解析: 暂无解析

  • 第16题:

    单选题
    What is the name of the movable,radial guide line used to measure direction on a radar?()
    A

    Compass rose

    B

    Cursor

    C

    Plan position indicator

    D

    Variable range marker


    正确答案: C
    解析: 暂无解析

  • 第17题:

    单选题
    Which signal is detected as originating from a SART?()
    A

    The Morse code distress series S-O-S repeated 3 times followed by DE and the vessel's call sign

    B

    A line of blip code on a radar screen outward from the SART's position along its line of bearing

    C

    A line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearing

    D

    None of these


    正确答案: A
    解析: 暂无解析

  • 第18题:

    单选题
    A line of position formed by sighting two charted objects in line is called a(n)().
    A

    relative bearing

    B

    range line

    C

    track line

    D

    estimated position


    正确答案: B
    解析: 暂无解析

  • 第19题:

    单选题
    A line of position derived from a loran reading is a section of a(n) ().
    A

    straight line

    B

    arc

    C

    parabola

    D

    hyperbola


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    Small floes of rough,hummocky sea ice capable of damaging a vessel().
    A

    can usually be detected by radar in a smooth sea at a range of 4 to 6 kilometers

    B

    are indistinguishable from sea return on the PPI

    C

    are invisible to radar when covered with a thick layer of snow

    D

    are usually seen at night before they are close enough to provide a radar echo


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    What does a SART signal sound or look like?()
    A

    It transmits SOS and the vessel's name and position in slow speed Morse Code

    B

    It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's position

    C

    It will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's position

    D

    None of the above


    正确答案: D
    解析: 暂无解析

  • 第22题:

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

    running fix

    B

    fix

    C

    estimated position

    D

    assumed position


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    You determine your vessel’s position by taking a range and bearing to a buoy.Your position will be plotted as a(n)().
    A

    Running fix

    B

    Fix

    C

    Dead-reckoning position

    D

    Estimated position


    正确答案: D
    解析: 暂无解析