单选题A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment? ()AMove the quadrantal spheres closer to the compassBRaise the heeling magnet if the red end is upCRemove some of the Flinders barDRaise or lower the athwartship magnets

单选题
A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment? ()
A

Move the quadrantal spheres closer to the compass

B

Raise the heeling magnet if the red end is up

C

Remove some of the Flinders bar

D

Raise or lower the athwartship magnets


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A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment?A.Move the quadrantal spheres closer to the compassB.Raise the heeling magnet if the red end is upC.Remove some of the Flinders barD.Raise or lower the athwartship magnets

Which magnetic compass corrector(s)CANNOT be set on a heading of magnetic east or magnetic west ________.A.Heeling magnetB.Flinders barC.Fore-and-aft magnetsD.All of the above can be set on magnetic east or magnetic west headings

Which magnetic compass corrector(s)can be set while the vessel is on a heading of magnetic north or magnetic south ________.A.Quadrantal spheresB.Heeling magnetsC.Flinders barD.Fore-and-aft magnets

Deviation in a compass is caused by the ______.A.vessel’s geographic positionB.vessel’s headingC.earth’s magnetic fieldD.influence of the magnetic materials of the vessel

If the compass heading and magnetic-heading are the same then ______.A.the deviation has been offset by the variationB.there is something wrong with the compassC.the compass is being influenced by nearby metalsD.there is no deviation on that heading

If a magnetic compass is not affected by any magnetic field other than the Earth’s which statement is TRUE?______.A.Compass error and variation are equalB.Compass north will be true northC.Variation will equal deviationD.There will be no compass error

Magnetic compass deviation______.A.varies depending upon the bearing usedB.is the angular difference between magnetic north and compass northC.is published on the compass rose on most nautical chartsD.is the angular difference between geographic and magnetic meridians

Magnetic heading differs from compass heading by______.A.compass errorB.true headingC.variationD.Deviation

Magnetic dip is a measurement of the angle between the ______.A.geographic pole and the magnetic poleB.lubber’s line and true northC.horizontal and the magnetic line of forceD.compass heading and the magnetic heading

单选题Deviation in a compass is caused by the().Avessel's geographic positionBvessel's headingCearth's magnetic fieldDinfluence of the magnetic materials of the vessel

单选题If a magnetic compass is not affected by any magnetic field other than the Earth’s,which statement is TRUE? ()ACompass error and variation are equalBCompass north will be true northCVariation will equal deviationDThere will be no compass error

单选题Magnetic heading differs from compass heading by().Acompass errorBtrue headingCvariationDdeviation

单选题The horizontal angle between the magnetic meridian and the north-south line of the magnetic compass is().AdeviationBvariationCcompass errorDdip

单选题Which magnetic compass corrector(s)CANNOT be set on a heading of magnetic east or magnetic west().AHeeling magnetBFlinders barCFore-and-aft magnetsDAll of the above can be set on magnetic east or magnetic west headings

单选题If the magnetic heading is greater than the compass heading,the deviation is().AeastBwestCnorthDsouth

单选题If the compass heading and the magnetic heading are the same then().Athe deviation has been offset by the variationBthere is something wrong with the compassCthe compass is being influenced by nearby metalsDthere is no deviation on that heading

单选题The standard magnetic compass heading differs from the true heading by().Acompass errorBlatitudeCvariationDdeviation

单选题The lubber’s line of a magnetic compass().Aalways shows true north directionBindicates the vessel's headingCis always parallel to the vessel's transomDis located on the compass card

单选题A vessel is heading magnetic northwest and its magnetic compass indicates a heading of 312°. What action should be taken to remove this error during compass adjustment? ()AIf the quadrantal spheres are all the way out,replace them with smaller spheresBIf the quadrantal spheres are all the way in,replace them with larger spheresCIf the quadrantal spheres are all of the way out,move the spheres inDIf the quadrantal spheres are all the way out,replace them with larger spheres.

单选题A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°. Which action should be taken to remove this error during compass adjustment?()AIf the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets.BIf the blue ends of the magnets are aft you should lower the fore-and-aft trayCIf the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnetsDIf the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets

单选题A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°.Which action should be taken to remove this error during compass adjustment().AIf the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnetsBIf the blue ends of the magnets are aft you should lower the fore-and-aft trayCIf the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnetsDIf the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets

单选题A vessel is heading magnetic northwest and its magnetic compass indicates a heading of 317°. What action should be taken to remove this error during compass adjustment? ()AIf the quadrantal spheres are out as far as possible replace them with smaller spheresBIf the quadrantal spheres are in as far as possible remove one of the spheresCIf the quadrantal spheres are in as far as possible replace them with smaller spheresDIf the quadrantal spheres are out as far as possible,move the quadrantal spheres in

单选题Which magnetic compass corrector(s)can be set while the vessel is on a heading of magnetic north or magnetic south().AQuadrantal spheresBHeeling magnetsCFlinders barDFore-and-aft magnets

单选题Variation is the angular measurement between().Acompass north and magnetic northBcompass north and true northCmagnetic meridian and the geographic meridianDyour vessel's heading and the magnetic meridian

单选题The principal purpose of magnetic compass adjustment is to().Areduce the variation as much as possibleBreduce the deviation as much as possibleCreduce the magnetic dip as much as possibleDallow the compass bowl to swing freely on its gimbals

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