A.VHF
B.Steering Gear
C.Rudder Indicator
D.Loran
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A.make
B.be made
C.not make
D.not be made
A.remains aligned with compass north
B.also turns to starboard
C.first turns to starboard then counterclockwise to port
D.turns counterclockwise to port
A.spider element
B.mercury ballistic
C.gyrotron
D.rotor
A.the horizontal component of the permanent magnetism
B.deviation caused by the vessel's inclination from the vertical
C.induced magnetism in the horizontal soft iron
D.induced magnetism in the vertical soft iron
A.bearing circle
B.pelorus
C.bearing bar
D.alidade
最新試題
The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.
When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
The line connecting the Loran-C master station with a secondary station is called the（）.
Which of the following statements is TRUE regarding crane operations（）.
（）is not a component of GPS.
Most modern Loran-C receivers，when not tracking properly，have a（n）（）.
Would you please（）on the radar?
The loran lines drawn on navigation charts represent（）.
（）is not an alarm required by IMO standards to be available on the ECDIS.
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.