A.high pressure system
B.low pressure system
C.high dew point
D.low dew point
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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
A.As many as
B.So many as
C.As much as
D.As more as
A.Increased draft
B.Pitch
C.Roll
D.Change in trim
最新試題
A Doppler speed log indicates speed over ground（）.
Error may be introduced into a magnetic compass by（）.
An ECDIS is required to display which information?（）
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 microsecond unit of time is used in radar applications. The microsecond represents 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（）.
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
An ECDIS is required to display which information?（）
A Doppler log in the volume reverberation mode indicates（）.
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?（）.