Which statement about the Flinders bar of the magnetic compass is CORRECT ________．A.It compensates for the error caused by the vertical component of the Earth's magnetic fieldB.It compensates for error caused by the heeling of a vesselC.It compensates for quadrantal deviationD.It is only needed in equatorial waters
Which statement about the Flinders bar of the magnetic compass is CORRECT ________．
A.It compensates for the error caused by the vertical component of the Earth's magnetic field
B.It compensates for error caused by the heeling of a vessel
C.It compensates for quadrantal deviation
D.It is only needed in equatorial waters
相关考题：
Which one of the followings is incorrect about magnetic compass?______.A.The magentic compass is compulsory on my vesselB.The magentic compass is prone to errorC.The magentic compass is always placed inside steel constructionsD.The magentic compass needs to be calibrated to compensate for local magnetic distortion
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 statement about the gyrocompass is FALSE ________．A.Its accuracy remains the same at all latitudesB.It seeks the true meridianC.It can be used near the Earth's magnetic polesD.If an error exists，it is the same on all headings
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
When crossing the magnetic equator the ______．A.Flinders bar should be invertedB.Heeling magnet should be invertedC.The quadrantal spheres should be rotated 180°D.Flinders bar should be moved to the opposite side of the binnacle
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
Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism．These correctors are the ______．A.Fore-and-aft and athwartships magnetsB.Dip needle and heeling magnetC.Heeling magnet and Flinders barD.Flinders bar and quadrantal spheres
Deviation which is maximum on intercardinal compass headings may be removed by the ______．A.Flinders barB.Transverse magnetsC.Fore-and-aft magnetsD.Soft iron spheres on the sides of the compass
You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made ________．A.Flinders bar first，then the heeling magnet and spheresB.Heeling magnet first，then the Flinders bar and spheresC.Flinders bar first，then the spheres and heeling magnetD.Spheres first，then the Flinders bar and heeling magnet
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
Which statement about Belgium is NOT true?A.it is twice as big as Beijing.B.it has two major ethnic groups.C.it has gone through quite a few threats of division.D.it has no government.
Which statement is correct about the use of the virtual interface on a WLC ？（）A、 Used to relay DHCP messagesB、 Used to communicate with LAPsC、 Used to bring up LWAPP tunnelsD、 Used to extend into the wireless client VLAN
单选题Which statement about the Flinders bar of the magnetic compass is CORRECT（）.AIt compensates for the error caused by the vertical component of the Earth's magnetic fieldBIt compensates for error caused by the heeling of a vesselCIt compensates for quadrantal deviationDIt is only needed in equatorial waters
单选题Which would influence a magnetic compass（）.AElectrical wiringBIron pipeCRadioDAll of the above
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Which statement about the gyrocompass is FALSE（）.AIts accuracy remains the same at all latitudesBIt seeks the true meridianCIt can be used near the Earth's magnetic polesDIf an error exists，it is the same on all headings
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What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）AQuadrantal spheresBHeeling magnetsCAthwartships magnetsDFore-and-aft magnets
单选题The Flinders bar on a magnetic compass compensates for the（）.Ainduced magnetism in vertical soft ironBinduced magnetism in horizontal soft ironCpermanent magnetism in ship's steelDvessel's inclination from the vertical
单选题Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism. These correctors are the（）.Afore-and-aft and athwartships magnetsBdip needle and heeling magnetCheeling magnet and Flinders barDFlinders bar and quadrantal spheres
单选题The total magnetic effects which cause deviation of a vessel’s compass can be broken down into a series of components which are referred to as（）.Adivisional partsBcoefficientsCfractional partsDequations
单选题You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made（）.AFlinders bar first，then the heeling magnet and spheresBHeeling magnet first，then the Flinders bar and spheresCFlinders bar first，then the spheres and heeling magnetDSpheres first，then the Flinders bar and heeling magnet
单选题The magnetic compass operates on the principle that（）.Alike magnetic poles attractBunlike magnetic poles repelCunlike poles attractDthe poles of the compass line up with the geographic poles of the earth
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