單項(xiàng)選擇題What are the conditions，under GMDSS，whereby a ship is NOT allowed to depart from any port? （）

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


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1.單項(xiàng)選擇題VHF Radio is one of the very important navigational instruments on board，（）messages can be sent.

A.by which
B.through which
C.by that
D.through that

2.單項(xiàng)選擇題Under the International Code of Signals how are geographical locations such as New York City transmitted?（）

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

3.單項(xiàng)選擇題The principal advantage of NAVTEX radio warnings is that（）.

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

4.單項(xiàng)選擇題The Master shall insure that the Emergency Position Indicating Radiobeacon (EPIRB) is（）.

A.secured inside the wheelhouse
B.tested annually
C.tested monthly
D.secured in the emergency locker

5.單項(xiàng)選擇題The maritime radio system consisting of a series of coast stations transmitting coastal warnings is called（）.

A.NAVTEX
B.HYDROLANT/HYDROPAC
C.NAVAREA
D.SAFESEA