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
What provides little or no indication that a vessel is dragging anchor? （）
Radar reflectors are required for（）.
You are underway in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must（）.
When hitting a solid object such as a ship or an airplane，the radar waves are reflected back （）they came.
What will cause the ARPA to emit a visual alarm，audible alarm，or both?（）
When you turn on the fast time constant (differentiator) control of a radar it will（）.
Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
When will the float-free emergency position indicating radiobeacon be activated after abandoning ship? （）
When using the radar for navigating（）.
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? （）