A.Navarea warnings
B.coastal warnings
C.local warnings
D.Meteorological warnings
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A.Mobile Satellite Information
B.Motor ship Identification
C.Most Serious Information
D.Maritime Safety Information
A.receiving messages/one station
B.transmission/ one coast station or ship
C.communicating /one ship
D.contacting/other
A.120/20
B.56/18
C.100/16
D.96/8
A.VHF channel16 and 13
B.appropriate DSC distress and safety frequency
C.INMARSAT TDM message channel
D.VHF channel 70 and channel 8
A.urgent traffic
B.distress alert
C.routine traffic
D.NAVTEX message
最新試題
COSPAS-SARSAT is intended to be used for（）.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
Before GMDSS, if the radio officer on board is serious ill,（）.
SOLAS ships shall be equipped with（）.
All coast radio stations（）DSC installed for VHF and HF.
We consider（）send a helicopter with medical facilities to the distress area.