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
（）is not a job of the radar antenna.
Although manual plotting for CPA works well，the workload can become overwhelming when confronted with（）.
When navigating in thick fog with the radar on，you should（）.
When using the ARPA in heavy rain，which action should you take? （）
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（）.
Which statement is TRUE concerning a vessel equipped with operational radar?（）.
（）typically extends from close as 0.1 nautical miles out to 32 NM.
Which statement concerning the operation of radar in fog is TRUE?（）
The development of（）led to the fully automatic ARPA systems installed on commercial ships.
You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced? （）