A.carrier frequency
B.pulse repetition rate
C.pulse length
D.pulse repetition time
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A.magnetron
B.receiver
C.indicator
D.modulator
A.transmitter
B.antenna system
C.indicator
D.modulator
A.persistence
B.pulse repetition rate
C.pulse length
D.resolution
A.Relative
B.TRUE
C.Compass
D.Magnetic
A.magnetism from the earth's magnetic field
B.misalignment of the compass
C.magnetism within the vessel
D.a dirty compass housing
最新試題
A Doppler speed log indicates speed over ground（）.
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
A Doppler log in the volume reverberation mode indicates（）.
The number of pulses of energy transmitted per second is call the（）.
Deviation in a compass is caused by 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 barometer showing falling pressure indicates the approach of a（）.
Compass deviation is caused by（）.
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（）.
Compass error is equal to the（）.