A.by day or at night
B.almost round the clock
C.somewhat and sometime
D.from sunrise and sunset
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A.DF
B.Radar System
C.DSC System
D.COSPAS-SARSAT
A.nature of distress
B.type of assistance required
C.course and speed and time at which the information was recorded
D.A, B, C are all right
A.when two stations communicate with each other
B.in any radio system and at any time
C.when one ship sends a message to another station
D.for communication among some stations
A.VHF channels 16 and 13
B.Appropriate DSC distress and safety frequencies
C.INMARSAT TDM message channel
D.VHF channel 70 and channel 8
A.SAR party and the ship in distress
B.SAR authorities and the ship in distress and survival craft
C.A ship station and any coast station
D.Ship stations and shore-based communication network
最新試題
All coast radio stations（）DSC installed for VHF and HF.
By using（）system a ship can send a distress message and know with certainty it will be received.
Please use（）for（）.
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,（）.
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.
Ship-to-ship distress alerting should be conducted by（）.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.