A.KEYLOCK
B.REPEATER
C.STATIC INVERTER
D.ANTI-CLUTTER-SEA
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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
A.carrier frequency
B.pulse repetition rate
C.pulse length
D.pulse repetition time
最新試題
A tall object with a light on or near the shore，to act as a guide or warning to mariners is called（）.
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 generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.
A Doppler speed log indicates speed over ground（）.
Deviation in a compass is caused by the（）.
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
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?（）
A deadhead is a(n)（）.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.