A.The Flinders bar
B.The heeling magnet
C.Quadrantal soft iron spheres
D.Bar magnets in the binnacle
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A.elevation
B.magnetic angle
C.vertical angle
D.dip
A.divisional parts
B.coefficients
C.fractional parts
D.equations
A.compass error
B.latitude
C.variation
D.deviation
A.precession
B.earth rate
C.gyroscopic inertia
D.gravity effect
A.remove deviation on the intercardinal headings
B.remove deviation on the cardinal compass headings
C.remove heeling error
D.compensate for induced magnetism in vertical soft iron
最新試題
What is the basic principle of the magnetic compass（）.
What is the name of the movable，radial guide line used to measure direction on a radar?（）
By convention，the north seeking ends of a compass’ magnets are colored（）.
When adjusting a magnetic compass for error，a deviation table should be made（）.
Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south（）.
The line which connects the points of zero magnetic dip is（）.
The most accurate method of determining gyrocompass error while underway is by（）.
Which compensates for errors introduced when the vessel heels over（）.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.
Any piece of metal on becoming magnetized will develop regions of concentrated magnetism called（）.