A.manually activated and operate on maritime (VHF) channels
B.automatically activated and operate on maritime (VHF) channels
C.manually operated and detected by satellite
D.automatically operated and detected by satellite
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A.self-propelled，inspected vessels
B.towing vessels
C.recreational vessels
D.uninspected passenger vessels
A.orbiting satellites in space
B.commercial radio stations
C.private，commercial，and military aircraft
D.ordinary radio stations
A.One approved Class A EPIRB
B.Two approved Class A EPIRBs
C.One approved Class B EPIRBs
D.Two approved Class B EPIRBs
A.does not have berthing facilities
B.has berthing and galley facilities
C.is a workboat and her mother ship carries an EPIRB
D.None of the above are correct
A.the information can be received on an ordinary FM radio
B.warnings are printed out for reading when convenient
C.broadcasts are at scheduled times
D.a low frequency band is used for long distance transmission
最新試題
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
The rescue coordination center may（）on stations which interfere with traffic.
We consider（）send a helicopter with medical facilities to the distress area.
Before GMDSS, if the radio officer on board is serious ill,（）.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
Please use（）for（）.