A.can be overcome by using traditional techniques
B.can not be overcome by satellite system
C.can be overcome by satellite and digital techniques
D.can not be tackled by any modern system
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A.assist
B.send a rescue
C.search the distress area
D.Reach the distress position at once
A.INMARSAT, EPIRB and DSC
B.NAVTEX, NBDP and R/T
C.INMARSAT, VHF and SART
D.EPIRB, DSC and radar
A.distress and safety radio communication purposes
B.life-saving purpose
C.GMDSS requirements
D.emergency position
A.Q-code
B.Telephone numbers and addresses
C.the international Codes of Signals
D.radio instructions
A.digital codes
B.code messages
C.norse codes
D.distress messages
最新試題
The vessel has stayed in port for seven days because she needs（）.
The priority of EGC messages is classified by（）.
What following is not among the function of SOLAS ships?（）
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
Radio beacon can be activated（）in case of distress.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Before GMDSS, if the radio officer on board is serious ill,（）.
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.
On-scene communications will normally take place between（）.