A.one target
B.two targets
C.three targets
D.a large number of targets
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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
A.Your speed must be reduced to bare steerageway
B.A look-out is not required if the radar is on
C.Fog signals are only required when a vessel is detected by radar
D.The radar should always be kept on a short-range scale
最新試題
When using the ARPA in heavy rain，which action should you take? （）
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.
When using a radar in a unstabilized mode，fixes are determined most easily from（）.
Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
（）is not used in modern radar.
When you turn on the fast time constant (differentiator) control of a radar it will（）.
Your radar is set on a true motion display.Which of the following will NOT appear to move across the PPI scope（）.
When navigating in thick fog with the radar on，you should（）.
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（）.
Which general statement concerning radar is FALSE?（）.