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
您可能感興趣的試卷
你可能感興趣的試題
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
Which condition indicates that your radar needs maintenance?（）
Which statement about an estimated position is TRUE?（）
Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel? （）
（）typically extends from close as 0.1 nautical miles out to 32 NM.
You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）
（）is not a job of the radar antenna.
When using a radar in a unstabilized mode，fixes are determined most easily from（）.
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? （）
Which statement is TRUE concerning a vessel equipped with operational radar?（）.
When will the float-free emergency position indicating radiobeacon be activated after abandoning ship? （）