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 derived from a loran reading is a section of a(n) ().
A

straight line

B

arc

C

parabola

D

hyperbola


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文中( 2 )处正确的答案是( )。A.derived fromB.deviated fromC.was derived fromD.was deviated from

The correction to be applied to a LoranC reading when matching a sky wave to a ground wave may be found______.A.on loran charts covering areas where sky waves are usedB.in the Radio Aids to Navigation PUB 117C.in the LoranC Correction TablesD.Sky waves cannot be matched to ground waves in LoranC to produce a usable reading

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 from a loran reading is a section of a(n) ______.A.straight lineB.arcC.parabolaD.hyperbola

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

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

You are in the process of adding a barge to your tow.A line run from your power capstan and around timber heads on your tow is made fast on the new barge so that it can be pulled into position.This line is called a ______.A.Scissors wireB.Capstan lineC.Spring lineD.Fore and aft line

The line connecting the Loran-C master station with a secondary station is called the ______.A.Focus lineB.Base lineC.Side lineD.Center line

mary would like to display a collapsed section on her video catalog form, she has created a section buy when she display the form in the client the section always opens expanded. which one of the following should mary do to collapse the section?()A、 nothing. Sections always open expanded B、 modify the section default properties to collapsed C、 modify the form propenties to display all sections collapsed D、 modify the section opened for reading property to auto-collapse

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?()AThe bottom samples and fathometer reading prove the loran fix is reliableBThe bottom samples and fathometer readings indicate that the loran fix is unreliableCThe information collected indicates that the fathometer may be in errorDThe information collected indicates that the chart is most likely in error

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

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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

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单选题Which is the summer load waterline on the load waterline mark?().AThe first line at the bottomBThe second line from the bottomCThe third line from the bottomDThe fourth line from the bottom

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When the vessel shafting are installed, the slightly inclined of the shaft line should be rectified by()Aadjusting the position of the intermediate bearingBchanging the position of the main engine installationCadjusting the center line of the propellerDchanging the position of the thrust block

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单选题75. A pardon from B am free from C excuse from D am derived fromAABBCCDD

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单选题The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found().Aon loran charts covering areas where sky waves are usedBin the Radio Aids to Navigation,PUB 117Cin the Loran-C Correction TablesDSky waves cannot be matched to ground waves in LORAN-C to produce a usable reading