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
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（）.
Automatic identification systems（AIS）are required to（）.
The heading of a vessel is indicated by what part of the compass? （）
The operation of which aids to navigation may be suspended during war or national emergency（）.
Radar makes the most accurate determination of the（）.
（）is not an alarm required by IMO standards to be available on the ECDIS.
The loran lines drawn on navigation charts represent（）.
（）is a digitized“picture”of a chart.
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
The line connecting the Loran-C master station with a secondary station is called the（）.