A.Latitude
B.Longitude
C.Speed
D.Time
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A.deviation
B.variation
C.local attraction
D.All of the above
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
最新試題
（）is a digitized“picture”of a chart.
While you are at anchor，what will serve as a positive warning that you are drifting towards the wrecks located to the NW and SW of your 2215 position（）.
Which of the following statements is TRUE regarding crane operations（）.
The（）transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.
The line connecting the Loran-C master station with a secondary station is called the（）.
（）is not an alarm required by IMO standards to be available on the ECDIS.
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 automatic identification systems（AIS）（）.
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.
Which one of the followings does not limit the effective range of radar（）.