A.Signal absorption by the ionosphere
B.Heavy sea swells
C.The rescue personnel were monitoring the 10-cm radar
D.The rescue personnel were monitoring the 3-cm radar
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A.DSC provides reception of weather and navigational warnings plus search and rescue information
B.DSC provides low-cost，routine communications for the vessel operator
C.DSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radio
D.This aids SAR authorities in tracking a vessel's position by satellite
A.SART
B.EPIRB
C.NAVTEX
D.INMARSAT-B
A.Ask for permission
B.Record the time in your radio log
C.Press the push to talk button three times
D.Monitor the channel to insure that it is clear
A.An urgent message concerning a vessel in distress
B.A weather advisory about unusual meteorological or oceanographic phenomena hazardous to vessels
C.A broadcast disseminating an official government proclamation affecting shipping
D.A radio navigational warning concerning a particularly hazardous condition affecting navigation
A.It transmits "SOS" and the vessel's name and position in slow speed Morse Code
B.It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's position
C.It will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's position
D.None of the above
最新試題
Which list is NOT required to be provided as part of the appendices of the Shipboard Oil Pollution Emergency Plan?（）
Which equipment is not a source of locating signals?（）
Which statement about transmitting distress messages by radiotelephone is INCORRECT?（）
Which emergency is required to be covered at the required periodic drills on a fishing vessel?（）
Which emergency equipment should you keep near the towing bitts? （）
Which statement concerning the navigation of a vessel in ice is FALSE?（）
Which system may be useful for messages，such as local storm warnings or a shore-to-ship distress alert，for which it is inappropriate to alert all ships in the satellite coverage area?（）
What would NOT be a distress signal?（）
When hanging off drill pipe in emergency situations aboard a ship，the preferred location of the drill bit is（）.
What would most likely prevent a SART’s signal from being detected?（）