A.deviation
B.variation
C.local attraction
D.All of the above
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A.at close range
B.at end on situation
C.at head on situation
D.at crossing situation
A.to get
B.to approach
C.to proceed
D.to close
A.hard iron
B.soft iron
C.vertical iron only
D.horizontal iron only
A.Rhythm
B.Period
C.Intensity
D.Color
A.Magnetic compass table
B.Magnetic meridians
C.Isogonic lines
D.Variation is not indicated on small-scale nautical charts
最新試題
When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
Which of the following statements is TRUE regarding crane operations（）.
In using Loran-C，skywave reception gives greater range but is（）.
With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds（）.
The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.
（）is a digitized“picture”of a chart.
The line connecting the Loran-C master station with a secondary station is called the（）.
Radar makes the most accurate determination of the（）.
The information received by AIS will be displayed on（）.
When your vessel is proceeding to the area of traffic density，（）is used to determine the exact ranges of other ships or objects in the vicinity.