Magnetic information on a chart may be ______.A.found in the center(s) of the compass rese(s)B.indicated by isogonic linesC.found in a note on the chartD.All of the above
Magnetic information on a chart may be ______.
A.found in the center(s) of the compass rese(s)
B.indicated by isogonic lines
C.found in a note on the chart
D.All of the above
相关考题：
A pilot chart does NOT contain information about ______.A.average wind conditionsB.tidal currentsC.magnetic variationD.average limits of field ice
Magnetic information on a chart may be ______.A.found in the center(s) of the compass rose(s)B.indicated by isogonic linesC.found in a note on the chartD.All of the above
On a nautical chart，the inner ring of a compass rose indicates ______.A.true directionsB.compass errorC.deviationD.magnetic directions
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 deviation is caused by ______.A.magnetism from the earth’s magnetic fieldB.misalignment of the compassC.magnetism within the vesselD.a dirty compass housing
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
Error may be introduced into a magnetic compass by ______.A.making a structural change to the vesselB.a short circuit near the compassC.belt bucklesD.All of the above
How is variation indicated on a small-scale nautical chart?______.A.Magnetic compass tableB.Magnetic meridiansC.Isogonic linesD.Variation is not indicated on small-scale nautical charts
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 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Compass deviation is caused by（）.Amagnetism from the earth's magnetic fieldBmisalignment of the compassCmagnetism within the vesselDa dirty compass housing
单选题The magnetic compass magnets are acted on by the horizontal component of the Earth’s total magnetic force. This magnetic force is GREATEST at the（）.Anorth magnetic poleBsouth magnetic poleCmagnetic prime vertical meridianDmagnetic equator
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The survey information upon which a chart is based is found （）.Aat the top center of the next lineBnear the chart titleCat the lower left cornerDat any convenient location
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Which information does the outer ring of a compass rose on a nautical chart provide（）.AvariationBtrue directionsCmagnetic directionsDannual rate of variation change
单选题Variation in a compass is caused by（）.Aworn gears in the compass housingBmagnetism from the earth's magnetic fieldCmagnetism within the vesselDlack of oil in the compass bearings
单选题Error may be introduced into a magnetic compass by（）.Amaking a structural change to the vesselBa short circuit near the compassCbelt bucklesDAll of the above
单选题What is an advantage of the magnetic compass aboard vessels?（）ACompass error is negligible at or near the earth's magnetic polesBIt does not have to be checked as oftenCIt is reliable due to it's essential simplicityDAll points on the compass rose are readily visible
单选题What is the basic principle of the magnetic compass（）.AMagnetic materials of the same polarity repel each other and those of opposite polarity attractBThe Earth's magnetic lines of force are parallel to the surface of the EarthCMagnetic meridians connect points of equal magnetic variationDThe compass needle（s）will，when properly compensated，lie parallel to the isogonic lines of the Earth
单选题The principal purpose of adjustment of the magnetic compass is to eliminate（）as far as possible.AvariationBcompass errorCdeviationDearth's magnetic force
单选题The error in a magnetic compass caused by the vessel’s magnetism is called（）.AvariationBdeviationCcompass errorDbearing error
单选题Magnetic information on a chart may be （）.Afound in the center(s) of the compass rose(s)Bindicated by isogonic linesCfound in a note on the chartDAll of the above