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
Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
The（）has a built-in world map; most areas are displayed on a scale of 4000 nm from the top to the bottom of the screen，and can be zoomed in to 150 nm.
When using the radar for navigating（）.
When navigating in thick fog with the radar on，you should（）.
Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel? （）
（）typically extends from close as 0.1 nautical miles out to 32 NM.
Radar reflectors are required for（）.
When using the ARPA in heavy rain，which action should you take? （）
Which statement concerning the operation of radar in fog is TRUE?（）
Which condition indicates that your radar needs maintenance?（）