A.geographic pole and the magnetic pole
B.lubber's line and true north
C.horizontal and the magnetic line of force
D.compass heading and the magnetic heading
您可能感興趣的試卷
你可能感興趣的試題
A.varies depending upon the bearing used
B.is the angular difference between magnetic north and compass north
C.is published on the compass rose on most nautical charts
D.is the angular difference between geographic and magnetic meridians
A.into the wind
B.away in fire and smoke
C.directly to the standby boat
D.directly to the nearest land
A.follow-up system
B.transmitter
C.phantom element
D.azimuth motor
A.east
B.west
C.north
D.south
A.The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true
B.The readings are too low and the amount of the error must be subtracted from the compass to obtain true
C.The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true
D.The readings are too high and the amount of the error must be subtracted from the compass to obtain true

最新試題
What is the basic principle of the magnetic compass?()
The quadrantal spheres are used to().
When adjusting a magnetic compass using the fore-and-aft permanent magnets,you should().
What is used to correct for both induced and permanent magnetism,and consequently must be readjusted with radical changes in latitude().
Any piece of metal on becoming magnetized will develop regions of concentrated magnetism called().
Variation in a compass is caused by().
The line which connects the points of zero magnetic dip is().
When changing from a compass course to a true course you should apply().
This induced magnetism()the permanent magnetism already present in the ship.
Which compensates for errors introduced when the vessel heels over().