A single vertical magnet placed underneath the compass in the binnacle is used to compensate for ______．A.The horizontal component of the permanent magnetismB.Deviation caused by the vessel's inclination from the verticalC.Induced magnetism in the horizontal soft ironD.Induced magnetism in the vertical soft iron
A single vertical magnet placed underneath the compass in the binnacle is used to compensate for ______．
A.The horizontal component of the permanent magnetism
B.Deviation caused by the vessel's inclination from the vertical
C.Induced magnetism in the horizontal soft iron
D.Induced magnetism in the vertical soft iron
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
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 compensates for errors introduced when the vessel heels over ________．A.The soft iron spheres on the arms of the binnacleB.Magnets placed in trays inside the binnacleC.A single vertical magnet beneath the compassD.The Flinders bar
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
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
During the day, a dredge will indicate the side on which it is safe to pass by displaying_____.A.two balls in a vertical lineB.two diamonds in a vertical lineC.a single black ballD.no shape is shown during the day
In which of the following configurations should a SAS hard drive jumper be placed for single drive operation？（）A、 The jumpers should be placed in the single/master position.B、 There are no configuration jumpers needed on a SAS hard drive.C、 The jumpers should be placed to give the drive a SCSI ID of 1.D、 The jumpers should be placed in the slave position.
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In which of the following configurations should a SAS hard drive jumper be placed for single drive operation?（）AThe jumpers should be placed in the single/master position.BThere are no configuration jumpers needed on a SAS hard drive.CThe jumpers should be placed to give the drive a SCSI ID of 1.DThe jumpers should be placed in the slave position.
单选题During the day，a dredge will indicate the side on which it is safe to pass by displaying（）.Atwo balls in a vertical lineBtwo diamonds in a vertical lineCa single black ballDno shape is shown during the day
单选题The vertical component of the Earth’s magnetic field causes induced magnetism in vertical soft iron. This changes with latitude. What corrects for this coefficient of the deviation? （）AThe Flinders barBThe heeling magnetCQuadrantal soft iron spheresDBar magnets in the binnacle
单选题Which compensates for errors introduced when the vessel heels over（）.AThe soft iron spheres on the arms of the binnacleBMagnets placed in trays inside the binnacleCA single vertical magnet beneath the compassDThe Flinders bar
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 of the following tools is BEST used to measure voltage and amperage from a power source?（）ALoopback PlugBMultimeterCPower Supply TesterDExtension Magnet
单选题In which of the following configurations should a SAS hard drive jumper be placed for single drive operation？（）A The jumpers should be placed in the single/master position.B There are no configuration jumpers needed on a SAS hard drive.C The jumpers should be placed to give the drive a SCSI ID of 1.D The jumpers should be placed in the slave position.
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The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.AnonmagneticBweatherproofCcorrosion resistantDcapable of being permanently affixed to the vessel
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 quadrantal spheres are used to（）.ARemove deviation on the intercardinal headingsBRemove deviation on the cardinal compass headingsCRemove heeling errorDCompensate for induced magnetism in vertical soft iron
单选题When crossing the magnetic equator the（）.AFlinders bar should be invertedBHeeling magnet should be invertedCThe quadrantal spheres should be rotated 180°DFlinders bar should be moved to the opposite side of the binnacle
单选题A single vertical magnet placed underneath the compass in the binnacle is used to compensate for（）.Athe horizontal component of the permanent magnetismBdeviation caused by the vessel's inclination from the verticalCinduced magnetism in the horizontal soft ironDinduced magnetism in the vertical soft iron
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When adjusting a magnetic compass for error，a deviation table should be made（）.Abefore correcting for any deviationBafter correcting for variationCafter adjusting the fore-and-aft and athwartships permanent magnetsDbefore the quadrantal correctors are placed on the compass
单选题Magnets are placed in horizontal trays in the compass binnacle to compensate for the（）.Ainduced magnetism in the vessel's horizontal soft ironBchange in the magnetic field when the vessel inclines from verticalCpermanent magnetism of the vesselDmagnetic fields caused by electrical currents in the vicinity
单选题If you（）a magnet-needle, its two ends can point North and South, and so it can be used to determine directions.AovertakeBfixChighlightDsuspend