A.Switch
B.To switch
C.Switched
D.Will switch
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A.My using
B.I use
C.To use
D.I will use
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
最新試題
The operation of which aids to navigation may be suspended during war or national emergency（）.
（）is not a factor which will affect the accuracy of GPS receiver.
In using Loran-C，skywave reception gives greater range but is（）.
Automatic identification systems（AIS）are required to（）.
The information received by AIS will be displayed on（）.
What does not contribute to the commercial GPS receiver position error（）.
Loran-C uses the multiple pulse system because（）.
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（）.
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.