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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
参考答案
更多 “ A line of position derived by radar range from an identified point on a coast will be a(n) ______.A.straight lineB.arcC.parabolaD.line parallel to the coast ” 相关考题
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The common way to obtain your ship’s position is ______.A.keeping a close watch and lookoutB.taking a radar range and bearingC.observing a radar target and listening to signalsD.keeping a well clear caution
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A line of position derived from a loran reading is a section of a(n) ______.A.straight lineB.arcC.parabolaD.hyperbola
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A radar range to a small，charted object such as a light will provide a line of position in which form?A.Straight lineB.ArcC.ParabolaD.Hyperbola
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A single line of position combined with a dead-reckoning position results in a(n) ______.A.estimated positionB.assumed positionC.fixD.running fix
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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
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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 whistleB.Alter course to starboardC.Construct a radar plotD.Sound the danger signal
考题
单选题The common way to obtain your ship’s position is（）.A
keeping a close watch and lookoutB
taking a radar range and bearingC
observing a radar target and listening to signalsD
keeping a well clear caution
考题
单选题A signal derived from a controlled function and returned to the initiating point is called a/an （）.A
monitoring signalB
inverse signalC
reverse signalD
feedback signal
考题
单选题A line of position from a celestial observation is a segment of a （）.A
circle of equal altitudeB
parallel of declinationC
parallel of altitudeD
vertical circle
考题
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 sextantB
The chronometerC
The echo sounderD
The radar
考题
单选题A line of position derived by radar range from an identified point on a coast will be a(n) （）.A
straight lineB
arcC
parabolaD
line parallel to the coast
考题
单选题What is the name of the movable，radial guide line used to measure direction on a radar?（）A
Compass roseB
CursorC
Plan position indicatorD
Variable range marker
考题
单选题A navigator fixing a vessel’s position by radar （）.A
can use radar information from one object to fix the positionB
should never use radar bearingsC
should only use radar bearings when the range exceeds the distance to the horizonD
must use information from targets forward of the beam
考题
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 signB
A line of blip code on a radar screen outward from the SART's position along its line of bearingC
A line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearingD
None of these
考题
单选题A star is observed at lower transit. The line of position derived from this sight is（）.A
on the prime verticalB
a latitude lineC
a longitude lineD
of no special significance
考题
单选题A line of position formed by sighting two charted objects in line is called a(n)（）.A
relative bearingB
range lineC
track lineD
estimated position
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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 whistleB
Alter course to starboardC
Construct a radar plotD
Sound the danger signal
考题
单选题A line of position derived from a loran reading is a section of a(n) （）.A
straight lineB
arcC
parabolaD
hyperbola
考题
单选题A line of position is（）.A
a line connecting two charted objectsB
a line on some point of which the vessel may be presumed to be locatedC
the position of your vesselD
not used in a running fix
考题
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 kilometersB
are indistinguishable from sea return on the PPIC
are invisible to radar when covered with a thick layer of snowD
are usually seen at night before they are close enough to provide a radar echo
考题
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 coastB
Farther from the coastC
On the track line ahead of the fixD
On the track line behind the fix
考题
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 CodeB
It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's positionC
It will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's positionD
None of the above
考题
单选题What provides little or no indication that a vessel is dragging anchor? （）A
Increasing radar range to a fixed object aheadB
Drift lead with the line leading perpendicular to the centerlineC
Vibrations felt by placing a hand on the cableD
Changing bearings to distant fixed objects abeam
考题
单选题A single line of position combined with a dead-reckoning position results in a(n)（）.A
running fixB
fixC
estimated positionD
assumed position
考题
单选题A single line of position combined with a dead-reckoning position results in a(n)（）.A
estimated positionB
assumed positionC
fixD
running fix
考题
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 fixB
FixC
Dead-reckoning positionD
Estimated position
考题
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 lineB
ArcC
ParabolaD
Hyperbola
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