A.Flinders bar first，then the heeling magnet and spheres
B.Heeling magnet first，then the Flinders bar and spheres
C.Flinders bar first，then the spheres and heeling magnet
D.Spheres first，then the Flinders bar and heeling magnet
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A.Switch
B.To switch
C.Switched
D.Will switch
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
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.
Which statement concerning GPS is TRUE（）.
When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．
To obtain accuracy in fixing by DF，（）and three stations should be used.
Would you please（）on the radar?
Which one of the followings does not limit the effective range of radar（）.
Loran-C uses the multiple pulse system because（）.
Would you mind（）your DF?
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.