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
Compass deviation is caused by（）.
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?（）.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
An ECDIS is required to display which information?（）
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.
Deviation in a compass is caused by the（）.
A Doppler speed log indicates speed over ground（）.
How is variation indicated on a small-scale nautical chart?（）.
An electronic depth finder operates on the principle that（）.
（）the canal transit，the radar was operating.