A.Urgency signal
B.Safety signal
C.Distress signal
D.None of the above
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A.a floating wreck
B.a survivor at sea
C.a man who had fallen overboard
D.a drilling rig
A.a message about the safety of navigation will follow
B.a message of an urgent nature about the safety of a ship will follow
C.the sender is in distress and requests immediate assistance
D.you should secure your radiotelephone
A.Safety message
B.Urgency message
C.Distress message
D.Routine message
A.at
B.on
C.in
D.above
最新試題
Which mooring line has the least elasticity?（）
Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
Where would you find the call sign or call letters of the radio station on your ship?（）
The winch at Hatch No.3 is（）trouble.
Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）
Proper use shall be made（）radar equipment if fitted and operational.
The ship is not very stable，please（）when making a turn.
In order to prevent galvanic corrosion，an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?（）
In the International Code of signals，a group of three letters indicates（）.
The most likely time for oil pollution while bunkering is when（）.