A.trouble
B.error
C.wrong
D.mistake
您可能感興趣的試卷
你可能感興趣的試題
A.Notify the engine room of the steering malfunction
B.Change to hand steering
C.Call the Master
D.Send the Quartermaster to the emergency steering station
A.variation
B.compass error
C.deviation
D.earth's magnetic force
A.Similize
B.Clock
C.Synchronize
D.Position
A.east two degrees
B.two degrees east
C.two east degrees
D.two-degrees east
A.reflect
B.shown
C.detected
D.defected
最新試題
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
The minimum range at which a target can be detected is basically determined by which of the following?（）.
An electronic depth finder operates on the principle that（）.
Error may be introduced into a magnetic compass by（）.
Compass error is equal to the（）.
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
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?（）.
（）is on the panel of radar.
An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?（）.