A.beam
B.radar
C.light beacon
D.reflector
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A.Straight line
B.Arc
C.Parabola
D.Hyperbola
A.relative display
B.composite display
C.stabilized display
D.unstabilized display
A.unstabilized display
B.stabilized display
C.composition display
D.relative display
A.on the same course as your vessel
B.at the same speed as your vessel
C.on the same course and speed as your vessel
D.on a reciprocal course at the same speed as your vessel
A.Separated line
B.Divided line
C.Reference line
D.Segregated line
最新試題
The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
An electronic depth finder operates on the principle that（）.
The minimum range at which a target can be detected is basically determined by which of the following?（）.
Compass error is equal to the（）.
An ECDIS is required to display which information?（）
A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.
How is variation indicated on a small-scale nautical chart?（）.
Deviation is the angle between the（）.