船舶在第11海区航行，其NAVTEX接收到一份LL01电文，该电文是()

一个遇险转发的DSC呼叫，其格式符与类别分别可能是()

A、遇险/安全

B、遇险/安呼

C、全呼/安全

D、全呼/遇险

INMARSAT印度洋的电话洋区码是().

A、873

B、872

C、874

D、583

低极轨道卫星覆盖区域范围().

A、A4海区

B、A1+A2海区

C、A3海区

D、A1+A2+A3+A4海区

Every A3 ship, while at sea, shall maintain a continuous watch:

A.On VHF DSC channel 70

B.On the distress and safety DSC frequency 2,187.5 KHz and 8,414.5 KHz and also on at least one of the distress and safety DSC frequencies 4,207.5 KHz, 6,312 KHz, 12,577 KHz or 16,804.5 KHz, appropriate to the time of day and the geographical position of the ship

C.For satellite shore-to-ship distress alerts

D.All of these

of at least one MF coast station, in which continuous DSC alerting is available as defined by the IMO?

A.Ocean Area Regions AOR-E, AOR-W, POR or IOR

B.Sea Area A4

C.Sea Area A3

D.Sea Area A2

Which statement is false regarding the maintenance of GMDSS equipment at sea?

A.The GMDSS operator may not be the person designated to have primary responsibility for radio communications during distress incidents

B.Ships must carry at least one person who qualifies as a GMDSS maintainer for the maintenance and repair of equipment if the at sea maintenance option is selected

C.All at sea maintenance and repairs must be performed by, or under the supervision of a person holding a GMDSS First/Second Class Radio Electronic Certificate

D.The GMDSS maintainer may be the person responsible for ensuring that the watches are properly maintained and that the proper guard channels and the vessel’s position are entered in the DSC equipment

Which of the following is a required GMDSS function?

A.Bridge-to-bridge communications

B.Reception of weather map facsimile broadcasts

C.Both of these

D.None of these

cy energy source?

A.1 hour

B.6 hours

C.12 hours

D.24 hours

energy source?

A.1 hour

B.6 hours

C.12 hours

D.24 hours

s?

A.A copy of the IMO master plan of shore-based facilities

B.Station logs

C.ITU Radio Regulations

D.All of these