A.ZERO CLEARING
B.ANTI-CLUTTER-RAIN
C.DIMMER
D.CURSOR
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A.bearing circle
B.pelorus
C.bearing bar
D.alidade
A.spider element
B.sensitive element
C.link arm
D.pickup transformer
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
最新試題
With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds（）.
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
What does not contribute to the commercial GPS receiver position error（）.
（）is not a factor which will affect the accuracy of GPS receiver.
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 use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.
In using Loran-C，skywave reception gives greater range but is（）.
Which of the following statements is TRUE regarding crane operations（）.
（）is a digitized“picture”of a chart.
The loran lines drawn on navigation charts represent（）.