航海英语GMDSS章节练习(2018.03.17)

单项选择题
Geostationary satellite are artificial satellite which（）.
A.always move slowly
B.are in one place only
C.sometimes move and sometime don‟t
D.synchronize with the movement of the earth
单项选择题
Which statement is TRUE（）.
A.GMDSS radio logs are required to contain entries pertaining to all incidents connected to radio communication service which appear to be of importance to the safety of life at sea
B.All distress communications must be entered in the GMDSS radio log
C.Both of the above
D.None of the above
单项选择题
（）means navigational and meteorological warnings, meteorological forecasts and other urgent related messages broadcast to ships.
A.Navigational broadcast
B.weather forecast
C.Urgency message
D.Maritime Safety Information
单项选择题
Signals for locating will be transmitted in the 9GHz band by means of（）.
A.SART
B.DSC
C.NBDP
D.RT
单项选择题
If a DSC distress relay is transmitted from coast station , it will（）.
A.indicate the ship in distress that the alert has been received
B.alert ships in the area of a distress incident that a distress has occurred
C.inform other coast station of distress incident
D.repeat the distress alert in 5 minutes
单项选择题
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.
A.a dummy antenna
B.a supporting facilities
C.a back-up equipment
D.an antenna
单项选择题
Which statement concerning GMDSS Radio Operator requirements is FALSE（）.
A.Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea
B.Each compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well
C.Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications
D.While at sea，adjustments to，and the maintaining of，GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer
单项选择题
With the help of GMDSS（）can be alerted to a distress incident as soon as possible.
A.all ships in a large sea area
B.only the sea authorities ashore
C.the SAR units ashore and at sea
D.the port radios and the coast stations
单项选择题
Exchange of answer-backs acts a confirmation that the messages（）at the destination.
A.have received
B.have been received
C.are received
D.are being received
单项选择题
If EGC receiver shares a same antenna with INMARSAT MES, it means that it can receive MSI（）.
A.from any INMARSAT satellite
B.via any appropriate Navtex and EGC station
C.via the satellite the MES is tracking
D.from any RCC and coast station