A.Gain Control
B.Brilliant Control
C.Anti-clutter Sea Control
D.Sweep Intercept
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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
A.one-millionth part of a second
B.one-thousandth part of a second
C.one-hundredth part of a second
D.one-tenth part of a second
A.persistence
B.pulse repetition rate
C.pulse length
D.rotation rate
最新試題
A Doppler log in the bottom return mode indicates the（）.
The number of pulses of energy transmitted per second is call the（）.
How is variation indicated on a small-scale nautical chart?（）.
（）the canal transit，the radar was operating.
An ECDIS is required to display which information?（）
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
Compass error is equal to the（）.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
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?（）.