A.Two licensed GMDSS radio operators
B.Equipment carriage requirements
C.Distress alerting and response
D.All of the above
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A.The vessel is not capable of performing all required distress and safety functions
B.The vessel is carrying more than the required number of qualified GMDSS radio operators
C.The vessel has a temporary waiver of its radio license and Safety Certificate
D.The vessel is not carrying a GMDSS radio maintainer，but has provided for shoreside maintenance plus duplication of equipment if required
A.by which
B.through which
C.by that
D.through that
A.A commonly used abbreviation such as NYC is used
B.The name is spelled out
C.The geographical coordinates are used
D.The radio station call sign for the nearest marine radio station is used
A.they can be used by mariners who do not know Morse code
B.only an ordinary FM radio is necessary to receive these warnings
C.information on a given topic is only broadcast at specified times
D.they cover a broad spectrum of the radio band allowing reception on almost any type of receiver
A.secured inside the wheelhouse
B.tested annually
C.tested monthly
D.secured in the emergency locker
最新試題
All coast radio stations（）DSC installed for VHF and HF.
Radio communication（）for many years and helps to save tens of thousands of lives.
Please use（）for（）.
Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
By using（）system a ship can send a distress message and know with certainty it will be received.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
（）will form the basis for distress alerting and safety calling.