A.one-way
B.two-way
C.double-effect
D.one-effect
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A.distress
B.urgent
C.safety
D.general
A.call sign
B.port of register
C.radio name
D.signal label
A.EPIRB
B.SART
C.Mobile Station
D.Distress Alerting
A.COSPAS-SARSAT
B.ground receiving stations
C.storing distress signal
D.Near polar orbiting satellites
A.20 to 30
B.200
C.100
D.450
最新試題
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
What following is not among the function of SOLAS ships?（）
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
COSPAS-SARSAT is intended to be used for（）.
The rescue coordination center may（）on stations which interfere with traffic.
Radio beacon can be activated（）in case of distress.
All coast radio stations（）DSC installed for VHF and HF.
We consider（）send a helicopter with medical facilities to the distress area.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.