A.a plan-position indicator system
B.pulse-plan integration
C.pulse-pulse input
D.power-plan input
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A.one target
B.two targets
C.three targets
D.a large number of targets
A.EBL
B.VRM
C.CRT
D.target tracking range
A.EBL
B.VRM
C.CRT
D.Grease pencil
A.To receive the high-frequency pulses from the transmitter
B.To focus the pulses into a beam，and send them into space
C.To pick up reflected pulses coming from objects that have been struck by the beam
D.To reflect microwaves
A.Relative
B.TRUE
C.Compass
D.Magnetic
最新試題
When using a radar in a unstabilized mode，fixes are determined most easily from（）.
Radar reflectors are required for（）.
The development of（）led to the fully automatic ARPA systems installed on commercial ships.
What provides little or no indication that a vessel is dragging anchor? （）
（）is not used in modern radar.
You are underway at 5 knots and see on your radar a contact 10 miles directly astern of you. 12 minutes later，the contact is 8 miles directly astern of you. What is the estimated speed of the contact? （）
Your ARPA has automatic speed inputs from the log．Due to currents，the log is indicating a faster speed than the speed over the ground.What should you expect under these circumstances（）.
You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）
You are underway in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must（）.
（）typically extends from close as 0.1 nautical miles out to 32 NM.