A.EBL
B.VRM
C.CRT
D.Grease pencil
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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
A.Dead in the water
B.1 knot
C.10 knots
D.15 knots
最新試題
When navigating in thick fog with the radar on，you should（）.
What provides little or no indication that a vessel is dragging anchor? （）
Which statement concerning the operation of radar in fog is TRUE?（）
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（）.
When you turn on the fast time constant (differentiator) control of a radar it will（）.
Which statement is TRUE concerning a vessel equipped with operational radar?（）.
Which general statement concerning radar is FALSE?（）.
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.
PPI is（）.
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（）.