單項(xiàng)選擇題Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE? （）

A.CSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedence
B.The CSS must be established by mutual agreement between the ships concerned
C.A tank vessel should never be assigned CSS duties unless only tank vessels are present
D.The first vessel to arrive at the distress incident is designated as the CSS


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1.單項(xiàng)選擇題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

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題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

4.單項(xiàng)選擇題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

5.單項(xiàng)選擇題Distress signals may be（）.

A.red flares
B.smoke signals
C.sound signals
D.Any of the above