A.SeaTalk
B.powerful microprocessors and mega memory capacity
C.chartplotter
D.small-scale chart
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A.chartplotter
B.C-MAP NT
C.C-Cards
D.PPI
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
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
最新試題
Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
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? （）
When using a radar in a unstabilized mode，fixes are determined most easily from（）.
Which statement about an estimated position is TRUE?（）
（）is not a job of the radar antenna.
Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel? （）
You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）
Your ARPA has automatic speed inputs from the log．Due to currents，the log is indicating a faster speed than the speed over the ground.What should you expect under these circumstances（）.
（）is not used in modern radar.
When using the ARPA in heavy rain，which action should you take? （）