A.alerting
B.on-scene communication
C.safety information
D.general communication
您可能感興趣的試卷
你可能感興趣的試題
A.sometimes
B.all times
C.never
D.partly
A.to avoid mutual interference
B.to keep silence
C.owing to the time-share nature
D.to regulate transmitter power
A.from any INMARSAT satellite
B.via any appropriate Navtex and EGC station
C.via the satellite the MES is tracking
D.from any RCC and coast station
A.four
B.six
C.five
D.three
A.selective and can be suppressed by ships
B.mandatory and can not be suppressed by ships in the affected area
C.not very important so that ships don‟t require them
D.received by all ships wherever they are
最新試題
What following is not among the function of SOLAS ships?（）
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
All coast radio stations（）DSC installed for VHF and HF.
We consider（）send a helicopter with medical facilities to the distress area.