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
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
相关考题：
Your vessel is proceeding down a channel，and you see a pair of range lights that are in line dead ahead．The chart indicates that the direction of this pair of lights is 229°T，and variation is 6°W．If the heading of your vessel at the time of the sighting is 232°per standard magnetic compass，what is the correct deviation ________．A.3°EB.9°EC.3°WD.9°W
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
Compass error is equal to the ______.A.deviation minus variationB.variation plus compass courseC.combined variation and deviationD.difference between true and magnetic heading
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
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True heading differs from magnetic heading by（）.AdeviationBvariationCcompass errorDnortherly error
单选题Magnetic heading differs from compass heading by（）.Acompass errorBtrue headingCvariationDdeviation
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 compass heading of a vessel differs from the true heading by（）.Acompass errorBvariationCmagnetic dipDdeviation
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 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 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Magnetic dip is a measurement of the angle between the（）.Ageographic pole and the magnetic poleBlubber's line and true northChorizontal and the magnetic line of forceDcompass heading and the magnetic heading
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To center a compass bowl in its binnacle，you should have the ship on an even keel，heading north or south，and adjust the screws until（）.Athe compass heading is in line with the lubber's lineBthere is no lost motion in the gimbal ringsCno change of heading by compass is observed if you raise and lower the heeling magnetDthe gimbal rings do not strike the compass frame when they are tilted
单选题Magnetic compass deviation（）.Avaries depending upon the bearing usedBis the angular difference between magnetic north and compass northCis published on the compass rose on most nautical chartsDis the angular difference between geographic and magnetic meridians
单选题Compass error is equal to the（）.Adeviation minus variationBvariation plus compass courseCcombined variation and deviationDdifference between true and magnetic heading