A.AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
B.AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
C.AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position and other safety related information frequently to similarly equipped vessels，aircraft and shore stations within the area
D.AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
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A.AIS may be used to make passing arrangements via ship-to-ship text messaging thus relieving a vessel operator from sounding whistle signals or making contact via radiotelephone
B.AIS may be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is still required to sound whistle signals unless the arrangement is made via radiotelephone
C.AIS cannot be used to make passing arrangements because the system does not have the ability to communicate from ship-to-ship in this manner
D.AIS cannot be used to make passing arrangements because the use of the ship-to-ship text messaging feature in this way is prohibited
A.The master may，at his/her discretion，turn off the AIS if he/she believes that it may compromise the safety or security of the vessel
B.Under no circumstances shall AIS be turned off while underway as this could endanger the vessel and those around her
C.AIS is always required to be operating if the vessel is in or in the vicinity of a VTS area
D.AIS is always required to be operating if the vessel is within 100 nautical miles of the coastline
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
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
最新試題
Tell me（），please.
The range of a SSB transmission is MOST affected by（）.
Sorry to have kept you（）for a long time.
When communicating on the radiotelephone using plain English，what procedure word indicates the end of my transmission and that a response is necessary? （）
The agent has probably already handed over you the stowage plan，（）.
To reduce the amount of catenary you may（）.
The Agent promised to keep me（）of how our business was going on.
Shall we（）wait at the roadstead till there is a free berth for us?
Which information must automatic identification systems (AIS) automatically provide to appropriately equipped shore stations，vessels and aircraft? （）
When may the automatic identification system (AIS) be switched off? （）