A.vessel not under command
B.sailing vessel
C.vessel in distress
D.vessel being towed
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A.sea state
B.names of witnesses
C.time of its occurrence
D.wind direction and velocity
A.use English language
B.always use the International Code
C.preface it by the word "Interco"
D.follow the transmission with the radio alarm signal
A.By the On Scene Coordinator (OSC)
B.By the Coast Earth Station (CES) controlling the distress communications on that frequency
C.It is imposed by the Public Correspondence Station (PCS) controlling the distress communications on that frequency or channel
D.It is imposed by the High Seas Service (HSS) controlling the distress communications on that frequency or channel
A.red flares
B.smoke signals
C.sound signals
D.Any of the above
A.are not required aboard vessels on runs of less than 30 minutes duration
B.must be Coast Guard approved and stowed in a portable，watertight container
C.must be marked with an expiration date not more than 42 months from the date of manufacture
D.All of the above
最新試題
When a vessel signals her distress by means of a gun or other explosive signal，the firing should be at intervals of approximately（）.
How is “radio silence” imposed?（）
Which action should you take after sending a false distress alert on VHF?（）
Which is a distress signal? （）
If your vessel is underway in fog and you hear one prolonged and three short blasts，this indicates a（）.
Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within（）.
When should distress flares and rockets be used? （）
What is the calling and distress frequency on a single side band (SSB) marine radiotelephone?（）
If you are transmitting a distress message by radiotelephone you should（）.