A.all fishing vessels over 39 feet in length
B.sail-propelled fishing vessels
C.all fishing vessels of less than 200 GT
D.wooden hull fishing vessels with a poor radar echo
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A.a plan-position indicator system
B.pulse-plan integration
C.pulse-pulse input
D.power-plan input
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
最新試題
When using an ARPA，what should you consider in order to evaluate the information displayed?（）
What provides little or no indication that a vessel is dragging anchor? （）
Which procedure(s) shall be used to determine risk of collision? （）
Which statement is true concerning a vessel equipped with operational radar?（）.
Radar reflectors are required for（）.
When using the ARPA in heavy rain，which action should you take? （）
When using the radar for navigating（）.
When navigating in thick fog with the radar on，you should（）.
Which general statement concerning radar is FALSE?（）.
Your ARPA has been tracking a target and has generated the targets course and speed.The radar did not receive a target echo on its last two scans due to the weather.What should you expect under these circumstances（）.