A.MAYDAY sent by radiotelephone
B.Continuous sounding of fog horn
C.Green star shells fired from a launcher
D.Square flag and ball in a vertical line
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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
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
最新試題
Which statement pertaining to log keeping is TRUE?（）
When a survival craft drill is held，the person in charge must insure that（）.
Winds expected to（）Storm Force 10 in south-east semicircle later up to 300 miles from the center of the tropical cyclone.
When hanging off drill pipe in emergency situations aboard a ship，the preferred location of the drill bit is（）.
You are on a multiple-product chemical tanker with orders to load diethylamine. What is NOT a requirement for transporting this cargo?（）
Which action(s) should the operator of a pedestal crane take if crane control is lost?（）
Which statement concerning Montauk Point Light is TRUE?（）
What is the primary equipment for receiving MSI? （）
Which list is NOT required to be provided as part of the appendices of the Shipboard Oil Pollution Emergency Plan?（）
Which of the following steps should normally be taken first by those who have boarded a liferaft in an emergency situation?（）