A.spider element
B.sensitive element
C.link arm
D.pickup transformer
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A.high or low
B.AC or DC
C.strong or weak
D.on or off
A.gyro-compass
B.marine radar
C.DF
D.navigational satellite
A.two stations，including one on the nearest coast
B.two stations，including one on the nearer coast
C.three stations，including one on the farthest coast
D.three stations，including one on the nearest coast
A.parallel bearings
B.long-range bearings
C.short-range bearings
D.cross bearings
A.their transmitters
B.their receivers
C.their radars
D.their lorans
最新試題
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
Which of the following statements is TRUE regarding crane operations（）.
The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．
Loran-C uses the multiple pulse system because（）.
Loran-C is which type of system（）.
The information received by AIS will be displayed on（）.
In using Loran-C，skywave reception gives greater range but is（）.
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.
Which one of the followings does not limit the effective range of radar（）.
The heading of a vessel is indicated by what part of the compass? （）