A.Increased draft
B.Pitch
C.Roll
D.Change in trim
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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
A.magnetron
B.receiver
C.indicator
D.modulator
A.transmitter
B.antenna system
C.indicator
D.modulator
最新試題
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?（）.
A Doppler log in the bottom return mode indicates the（）.
A barometer showing falling pressure indicates the approach of a（）.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.
AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE，MASTS，ETC means（）.
Compass error is equal to the（）.
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 FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.
An ECDIS is required to display which information?（）