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
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
相关考题：
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
A line of position derived from a loran reading is a section of a(n) ______.A.straight lineB.arcC.parabolaD.hyperbola
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
A single line of position combined with a dead-reckoning position results in a(n) ______.A.estimated positionB.assumed positionC.fixD.running fix
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
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
单选题The common way to obtain your ship’s position is（）.Akeeping a close watch and lookoutBtaking a radar range and bearingCobserving a radar target and listening to signalsDkeeping a well clear caution
单选题A signal derived from a controlled function and returned to the initiating point is called a/an （）.Amonitoring signalBinverse signalCreverse signalDfeedback signal
单选题A line of position from a celestial observation is a segment of a （）.Acircle of equal altitudeBparallel of declinationCparallel of altitudeDvertical circle
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.AThe marine sextantBThe chronometerCThe echo sounderDThe radar
单选题A line of position derived by radar range from an identified point on a coast will be a(n) （）.Astraight lineBarcCparabolaDline parallel to the coast
单选题What is the name of the movable，radial guide line used to measure direction on a radar?（）ACompass roseBCursorCPlan position indicatorDVariable range marker
单选题A navigator fixing a vessel’s position by radar （）.Acan use radar information from one object to fix the positionBshould never use radar bearingsCshould only use radar bearings when the range exceeds the distance to the horizonDmust use information from targets forward of the beam
单选题Which signal is detected as originating from a SART?（）AThe Morse code distress series S-O-S repeated 3 times followed by DE and the vessel's call signBA line of blip code on a radar screen outward from the SART's position along its line of bearingCA line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearingDNone of these
单选题A star is observed at lower transit. The line of position derived from this sight is（）.Aon the prime verticalBa latitude lineCa longitude lineDof no special significance
单选题A line of position formed by sighting two charted objects in line is called a(n)（）.Arelative bearingBrange lineCtrack lineDestimated position
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?（）.ASound one blast of the whistleBAlter course to starboardCConstruct a radar plotDSound the danger signal
单选题A line of position derived from a loran reading is a section of a(n) （）.Astraight lineBarcCparabolaDhyperbola
单选题A line of position is（）.Aa line connecting two charted objectsBa line on some point of which the vessel may be presumed to be locatedCthe position of your vesselDnot used in a running fix
单选题Small floes of rough，hummocky sea ice capable of damaging a vessel（）.Acan usually be detected by radar in a smooth sea at a range of 4 to 6 kilometersBare indistinguishable from sea return on the PPICare invisible to radar when covered with a thick layer of snowDare usually seen at night before they are close enough to provide a radar echo
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（）.ACloser to the coastBFarther from the coastCOn the track line ahead of the fixDOn the track line behind the fix
单选题What does a SART signal sound or look like?（）AIt transmits SOS and the vessel's name and position in slow speed Morse CodeBIt will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's positionCIt will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's positionDNone of the above
单选题What provides little or no indication that a vessel is dragging anchor? （）AIncreasing radar range to a fixed object aheadBDrift lead with the line leading perpendicular to the centerlineCVibrations felt by placing a hand on the cableDChanging bearings to distant fixed objects abeam
单选题A single line of position combined with a dead-reckoning position results in a(n)（）.Arunning fixBfixCestimated positionDassumed position
单选题A single line of position combined with a dead-reckoning position results in a(n)（）.Aestimated positionBassumed positionCfixDrunning fix
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）（）.ARunning fixBFixCDead-reckoning positionDEstimated position
单选题A radar range to a small，charted object such as a light will provide a line of position in which form? （）AStraight lineBArcCParabolaDHyperbola