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
The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.
Which one of the followings does not limit the effective range of radar（）.
The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．
You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made（）.
Which of the following statements is TRUE regarding crane operations（）.
To obtain accuracy in fixing by DF，（）and three stations should be used.
Would you please（）on the radar?
Loran-C uses the multiple pulse system because（）.
Most modern Loran-C receivers，when not tracking properly，have a（n）（）.
In using Loran-C，skywave reception gives greater range but is（）.