A.navigational / typhoon
B.traffic / meteorological
C.marine / hurricane
D.navigational / meteorological
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A.dedicated system
B.MSI broadcasts
C.518KHZ
D.channel 16
A.ship’s movement
B.safety
C.ship’s management
D.hazards
A.by day or at night
B.almost round the clock
C.somewhat and sometime
D.from sunrise and sunset
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
最新試題
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Ship-to-ship distress alerting should be conducted by（）.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
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.
（）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.
Radio communication（）for many years and helps to save tens of thousands of lives.
The advantage of geostationary satellites is（）.
The vessel has stayed in port for seven days because she needs（）.
Radio beacon can be activated（）in case of distress.