A.replaces directional signals
B.makes the other vessel the stand-on vessel
C.indicates doubt as to another vessels actions
D.is the same as a MAYDAY signal
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A.distortion and compression
B.hydraulic and mechanical
C.magnetic and applied torque
D.frictionless and hydraulic
A.of
B.on
C.at
D.in
A.flashing amber light
B.yellow light with the same characteristics as the sternlight
C.all-round yellow light
D.yellow light with the same characteristics as the masthead light
A.fuel oil
B.sludge
C.oil refuse
D.All of the above
A.Mayday
B.Pan
C.Safety
D.Interco
最新試題
What is normally used to pass a mooring line to a dock?（）
The towing light is a(n)（）.
Tripping defects in anchors frequently occur in（）.
To develop maximum anchor holding power，the optimum angle between the anchor’s shank and the mooring lines is（）.
What is the MOST irritating to the skin?（）
The best method to stop a vessel from dragging anchor in a sand bottom is to（）.
What happens to the efficiency of an anchor when it is moved from sand to mud?（）
The radiotelephone safety message urgently concerned with safety of a person would be prefixed by the word（）.
The expression FIRST MAGNITUDE is usually used to refer only to bodies of magnitude（）.
The radiotelegraph alarm signal is（）.