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
您可能感興趣的試卷
你可能感興趣的試題
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
A.tree or log awash in a nearly vertical position
B.crew member who refuses to work
C.upstream end of a land wall
D.buoy that is adrift
最新試題
Error may be introduced into a magnetic compass by（）.
An ECDIS is required to display which information?（）
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.
The minimum range at which a target can be detected is basically determined by which of the following?（）.
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（）.
A tall object with a light on or near the shore，to act as a guide or warning to mariners is called（）.
An electronic depth finder operates on the principle that（）.
What will NOT induce errors into a doppler sonar log?（）
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.