SOS three times
Additional transmissions to aid direction finding
E for one minute，followed by T for one minute
Two tones，10-15 seconds each
第1题：
You are Master of a vessel that is sold in a foreign country after discharge of cargo. What is your responsibility to the crew in regards to return to the United States?
A.You must provide air transportation to the nearest port of entry in the United States
B.You must provide passage to the port of original engagement
C.There is no requirement for return to the United States provided the voyage has exceeded 4 weeks duration
D.The crew can be employed on another United States vessel，but only if it is returning to the port of original engagement
第2题：
Acknowledgement by you of receipt of a distress message from a vessel which，beyond any possible doubt，is not in your vicinity and is a long distance away must be made when ______．
A.vessels nearer the distress vessel acknowledge receipt
B.vessels nearer the distress vessel fail to acknowledge receipt
C.even you have not received the distress
D.even the vessel in distress expressly prohibit you from providing any salvage service
第3题：
What can be concluded about "modem" ?
A．It converts data from one form. to another.
B．It will be out of date soon.
C．It serves as a link between senders and recipients of message.
D．It transmits message more efficiently than other devices.
第4题：
When can routine communications be resumed on a frequency or channel on which radio silence has been imposed ________．
A.After determining that the frequency or channel appears to be no longer in use
B.After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C.After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D.Routine communications can resume if，in the Master's opinion，communications on that frequency or channel will not interfere with emergency communications
第5题：
What is the most appropriate action for a GMDSS radio operator to take in a distress situation where immediate help is needed，but the vessel is not sinking nor needs to be abandoned ________．
A.Switch off EPIRB and SART manually
B.Transmit distress call by MF/HF，VHF or INMARSAT
C.Notify the RCC（Rescue Coordination Center）through VHF FM on channel 13
D.Transmit distress call by activating the radiotelegraph automatic alarm signal
第6题：
While proceeding to a distress site，you hear the words “Seelonce mayday” on the radiotelephone．Which action should you take ________．
A.Resume base course and speed as your assistance is no longer required
B.Acknowledge receipt and advise your course，speed，and ETA
C.Relay the original distress message as no other vessel has acknowledged it
D.Monitor the radiotelephone but do not transmit
第7题：
What are the vessel equipment and personnel requirements for GMDSS ________．
A.Two licensed GMDSS radio operators
B.Equipment carriage requirements
C.Distress alerting and response
D.All of the above
第8题：
What is the position of the vessel________distress?
A.on
B.at
C.in
D.by
第9题：
What is meant by the term“radio silence”________．
A.Stations not directly involved with the on-going distress communications may not transmit on the distress frequency or channel
B.Stations remaining off the air to safeguard proprietary information
C.Two three-minute silent periods，at 15 and 45 minutes after the hour，that provide a transmitting“window”for distressed vessels to transmit distress alerts using J3E
D.Communications on a distress frequency or channel is banned for 24 hours following the cessation of the distress traffic
第10题：
ALWAYS be included in the initial distress message
be sent to a Coast Guard station FIRST
be transmitted as a series of short messages，if time allows
include the vessel's draft