A.AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position，course，speed and other safety related information to all those with similar equipment in the area
B.AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position，course，speed and other safety related information to all those with similar equipment in the area
C.AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position，course，speed and other safety related information to all those with similar equipment in the area
D.AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position，course，speed and other safety related information to all those with similar equipment within the area
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A.Vessel's type
B.Vessel's course
C.Navigational status
D.All of the above
A.Immediately
B.After one hour
C.Only when another vessel is in sight
D.Only after sunset
A.At anytime as long as it is properly logged
B.At the Master's professional judgment
C.Only when the vessel is at anchor or in port
D.Under no circumstance
A.Out
B.Over
C.Roger
D.Wilco
A.shorten the hawser or increase the tug's speed
B.lengthen the hawser or reduce the tug's speed
C.place your tug in irons
D.make a sharp turn
最新試題
She arrived at the anchorage last night and anchored（）berth.
When communicating on the radiotelephone using plain English，what procedure word indicates the end of my transmission and that a response is necessary? （）
The unit of duration of a dash in Morse Code is（）.
That ship arrived there（）6 p.m.yesterday.
Which information must automatic identification systems (AIS) automatically provide to appropriately equipped shore stations，vessels and aircraft? （）
That ship anchored too close（）my vessel.
Sorry to have kept you（）for a long time.
The following（）is a standard phrase.
To reduce the amount of catenary you may（）.
Which of the following statements is TRUE regarding automatic identification systems (AIS) ?（）