A.My using
B.I use
C.To use
D.I will use
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A.Rate of turn
B.Latitude and longitude
C.Navigational status
D.All of the above
A.Call sign and IMO number
B.Course over ground and MMSI
C.MMSI number and call sign
D.Route Plan and navigational status
A.A decreasing reading on loran pair 9960-X
B.The bearing of Wolf Trap Light changing to the right
C.Increasing soundings
D.The bearing of Wolf Trap Light changing to the left
A.It cannot be used in all parts of the world
B.There are 12 functioning GPS satellites at present
C.It may be suspended without warning
D.Two position lines are used to give a 2D fix
A.Pulse width
B.Pulse repetition frequency
C.Peak power
D.Target brightness
最新試題
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（）.
Which of the following statements is TRUE regarding crane operations（）.
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（）.
The information received by AIS will be displayed on（）.
Automatic identification systems（AIS）are required to（）.
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.
To obtain accuracy in fixing by DF，（）and three stations should be used.
Which one of the followings does not limit the effective range of radar（）.
Radar makes the most accurate determination of the（）.