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
Which general statement concerning radar is FALSE?（）.
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? （）
The development of（）led to the fully automatic ARPA systems installed on commercial ships.
Radar reflectors are required for（）.
Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel? （）
What provides little or no indication that a vessel is dragging anchor? （）
When using the ARPA in heavy rain，which action should you take? （）
Although manual plotting for CPA works well，the workload can become overwhelming when confronted with（）.
When using an ARPA，what should you consider in order to evaluate the information displayed?（）
Which statement is true concerning a vessel equipped with operational radar?（）.