A.to get
B.to approach
C.to proceed
D.to close
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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
A.accurate only in the Polar regions
B.accurate electronic servomechanisms
C.hand operated
D.accurate only if the vessel is underway
A.making a structural change to the vessel
B.a short circuit near the compass
C.belt buckles
D.All of the above
最新試題
Loran-C is which type of system（）.
What does not contribute to the commercial GPS receiver position error（）.
Radar makes the most accurate determination of the（）.
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.
（）is not a factor which will affect the accuracy of GPS receiver.
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（）.
To obtain accuracy in fixing by DF，（）and three stations should be used.
With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds（）.
The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．