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
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A.bearing circle
B.pelorus
C.bearing bar
D.alidade
A.RINGS INT
B.SWEEP INT
C.REPEATER
D.GONIOMETER
A.in high latitudes
B.near the equator
C.on north or south headings
D.on intercardinal headings
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.true bearing of the transmitter
B.relative bearing of the transmitter
C.heading of the vessel
D.time of reception
最新試題
The loran lines drawn on navigation charts represent（）.
The（）transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.
What does not contribute to the commercial GPS receiver position error（）.
In using Loran-C，skywave reception gives greater range but is（）.
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.
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（）.
Radar makes the most accurate determination of the（）.
Which one of the followings does not limit the effective range of radar（）.
Would you mind（）your DF?
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.