Which magnetic compass corrector(s)CANNOT be set on a heading of magnetic east or magnetic west().
A、Heeling magnet
B、Flinders bar
C、Fore-and-aft magnets
D、All of the above can be set on magnetic east or magnetic west headings
A、Heeling magnet
B、Flinders bar
C、Fore-and-aft magnets
D、All of the above can be set on magnetic east or magnetic west headings
A、If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets. B、If the blue ends of the magnets are aft you should lower the fore-and-aft tray C、If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnets D、If the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets
A、A.If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets B、B.If the blue ends of the magnets are aft you should lower the fore-and-aft tray C、C.If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnets D、D.If the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets
A、north magnetic pole B、south magnetic pole C、magnetic prime vertical meridian D、magnetic equator
A、A.Flinders bar B、B.transverse magnets C、C.fore-and-aft magnets D、D.soft iron spheres on the sides of the compass