单项选择题
If your vessel is underway in fog and you hear one prolonged and three short blasts，this indicates a（）.
A.vessel not under command
B.sailing vessel
C.vessel in distress
D.vessel being towed
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相关考题
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单项选择题
If you log a distress message，it must include the（）.
A.sea state
B.names of witnesses
C.time of its occurrence
D.wind direction and velocity -
单项选择题
If you are transmitting a distress message by radiotelephone you should（）.
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 -
单项选择题
How is “radio silence” imposed?（）
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
