A.on an even keel
B.listing about 1° to the side the light is displayed on
C.listing over 5° With the light displayed on the high side
D.listing，and the chutes should be directed to the side where the light is displayed
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A.two red lights
B.one green light
C.one white light
D.one amber light
A.circle of equal altitude
B.parallel of declination
C.parallel of altitude
D.vertical circle
A.straight line
B.arc
C.parabola
D.hyperbola
A.all-round yellow light only
B.all-round white light only
C.all-round blue light only
D.alternating red and yellow light
A.I am in doubt as to your actions
B.My engines are full speed astern
C.I desire to overtake you
D.I am operating astern propulsion
最新試題
The international number，location and/or name，geographical co-ordinates，characteristics and intensity，elevation in metres，range in sea miles and description of structure of a light can be found in（）.
Of the following，（）is not likely found in The Mariners Handbook.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
A sweep oar is an oar that is（）.
On an Atlantic Ocean voyage from New York to Durban，South Africa，you should expect the Agulhas Current to present a strong（）.
A person who sees someone fall overboard should（）.
After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to（）.
Mariners not entering the port are（）to keep at least one mile off.
Mean high water is the average height of（）.