A.unstabilized display
B.stabilized display
C.composition display
D.relative display
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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
A.at all times
B.in the bottom return mode
C.in the volume reverberation mode
D.only when there is no current
A.speed being made good
B.speed through the water
C.the set of the current
D.the depth of the water
A.velocity of the current
B.bottom characteristics
C.depth of the water
D.speed over the ground
最新試題
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
An ECDIS is required to display which information?（）
A barometer showing falling pressure indicates the approach of a（）.
A Doppler log in the bottom return mode indicates the（）.
You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced?（）.
The minimum range at which a target can be detected is basically determined by which of the following?（）.
（）the canal transit，the radar was operating.
（）20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions are possible.
A radar display in which North is always at the top of the screen is a(n)（）.
Deviation is the angle between the（）.