A.ship’s movement
B.safety
C.ship’s management
D.hazards
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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
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
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In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
Ship-to-ship distress alerting should be conducted by（）.
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.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
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.
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.
COSPAS-SARSAT is intended to be used for（）.
What following is not among the function of SOLAS ships?（）
Radio beacon can be activated（）in case of distress.