A.EBL
B.VRM
C.CRT
D.target tracking range
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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
A.stop your engines
B.sound two prolonged blasts of the whistle
C.sound the danger signal
D.slow to bare steerageway
最新試題
What provides little or no indication that a vessel is dragging anchor? （）
Which general statement concerning radar is FALSE?（）.
Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）
Which procedure(s) shall be used to determine risk of collision? （）
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.
When hitting a solid object such as a ship or an airplane，the radar waves are reflected back （）they came.
PPI is（）.
When using an ARPA，what should you consider in order to evaluate the information displayed?（）
When you turn on the fast time constant (differentiator) control of a radar it will（）.