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
Radio communication（）for many years and helps to save tens of thousands of lives.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
COSPAS-SARSAT is intended to be used for（）.
（）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.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
（）will form the basis for distress alerting and safety calling.
Please use（）for（）.
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
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.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.