A.EBL
B.VRM
C.CRT
D.target tracking range
您可能感興趣的試卷
你可能感興趣的試題
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
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? （）
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.
Which general statement concerning radar is FALSE?（）.
Your radar is set on a true motion display.Which of the following will NOT appear to move across the PPI scope（）.
When you turn on the fast time constant (differentiator) control of a radar it will（）.
Which procedure(s) shall be used to determine risk of collision? （）
Which condition indicates that your radar needs maintenance?（）
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.
Your radar displays your ship off center．As you proceed on your course， your ship’s marker moves on the PPI scope while echoes from land masses remain stationary.What is this display called（）.
（）is not a job of the radar antenna.