A.Similize
B.Clock
C.Synchronize
D.Position
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A.east two degrees
B.two degrees east
C.two east degrees
D.two-degrees east
A.reflect
B.shown
C.detected
D.defected
A.A vessel on the starboard bow whose bearing is changing and range is decreasing
B.A vessel on the starboard bow whose bearing is steady and range is increasing
C.A vessel on the port bow whose bearing is steady and range is decreasing
D.A vessel on the port bow whose bearing is changing to the left and range decreasing
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Deviation is the angle between the（）.
AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE，MASTS，ETC means（）.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
Error may be introduced into a magnetic compass by（）.
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?（）.
What will NOT induce errors into a doppler sonar log?（）
Compass deviation is caused by（）.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
A Doppler speed log indicates speed over ground（）.