A.VHF
B.Steering Gear
C.Rudder Indicator
D.Loran
您可能感興趣的試卷
你可能感興趣的試題
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
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（）.
（）is not a factor which will affect the accuracy of GPS receiver.
The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.
Radar makes the most accurate determination of the（）.
The loran lines drawn on navigation charts represent（）.
The operation of which aids to navigation may be suspended during war or national emergency（）.
Automatic identification systems（AIS）are required to（）.
Which one of the followings does not limit the effective range of radar（）.
Would you mind（）your DF?
If the radio signal ground wave extends out for less distance than the minimum skywave distance，there is an area in which no signal is received．This is called the（）.