A.Navigational satellites
B.Loran
C.Omega
D.Any of the above
您可能感興趣的試卷
你可能感興趣的試題
A.Ground waves
B.Skywaves
C.Either ground waves or skywaves interchangeably
D.An average between ground wave and skywave positions
A.Focus line
B.Base line
C.Side line
D.Center line
A.DCU
B.UTC
C.ENC
D.MENU
A.AIS
B.ECDIS
C.GPS
D.VDR
A.direction of a target
B.distance to a target
C.size of a target
D.shape of a target
最新試題
When your vessel is proceeding to the area of traffic density，（）is used to determine the exact ranges of other ships or objects in the vicinity.
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.
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.
Loran-C is which type of system（）.
What does not contribute to the commercial GPS receiver position error（）.
The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．
The line connecting the Loran-C master station with a secondary station is called the（）.
Which one of the followings does not limit the effective range of radar（）.
Which of the following statements is TRUE regarding crane operations（）.
Most modern Loran-C receivers，when not tracking properly，have a（n）（）.