A.velocity of the current
B.bottom characteristics
C.depth of the water
D.speed over the ground
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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
A.high pressure system
B.low pressure system
C.high dew point
D.low dew point
A.At
B.In
C.During
D.With
A.Gain Control
B.Brilliant Control
C.Anti-clutter Sea Control
D.Sweep Intercept
A.KEYLOCK
B.REPEATER
C.STATIC INVERTER
D.ANTI-CLUTTER-SEA
最新試題
A Doppler speed log indicates speed over ground（）.
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（）.
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.
An ECDIS is required to display which information?（）
Deviation is the angle between the（）.
The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.
A Doppler log in the volume reverberation mode indicates（）.
Deviation in a compass is caused by the（）.
Error may be introduced into a magnetic compass by（）.