A.assist
B.send a rescue
C.search the distress area
D.Reach the distress position at once
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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
A.DSC
B.MSI
C.EGC
D.NBDP
最新試題
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
（）will form the basis for distress alerting and safety calling.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
Ship-to-ship distress alerting should be conducted by（）.
SOLAS ships shall be equipped with（）.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.