A.The ARPA will generate data as if the target was still being tracked by radar
B.The ARPA will give an audible and/or visual lost target alarm
C.The ARPA will generate data based on sea return echoes from the vicinity where the target was lost
D.The ARPA has lost all memory of the target and must recompute the target data
您可能感興趣的試卷
你可能感興趣的試題
A.SeaTalk
B.powerful microprocessors and mega memory capacity
C.chartplotter
D.small-scale chart
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
最新試題
Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
What provides little or no indication that a vessel is dragging anchor? （）
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.
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 hitting a solid object such as a ship or an airplane，the radar waves are reflected back （）they came.
（）is not a job of the radar antenna.
Which condition indicates that your radar needs maintenance?（）
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（）.
Which procedure(s) shall be used to determine risk of collision? （）
When using the ARPA in heavy rain，which action should you take? （）