A.straight line
B.arc
C.parabola
D.hyperbola
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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
A.should be righted by standing on the carbon dioxide cylinder，holding the righting straps and leaning backwards
B.should be righted by standing on the life line，holding the righting straps leaning backwards
C.will right itself when the canopy tube inflates
D.must be cleared of the buoyant equipment before it will right itself
A.at the bow
B.at the stern
C.in the middle
D.all around
A.a painter
B.red smoke flares
C.a jackknife
D.a signal mirror
最新試題
After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.
After being rescued from the vessel accident，the people agreed that they had much to（）.
A sweep oar is an oar that is（）.
An inflatable liferaft is hand-launched by（）.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
Of the following，（）is not likely found in The Mariners Handbook.
The latest known details of lights are given in（）.
The information on ocean voyage planning with routeing details for powered and sailing vessels is likely found in（）.
An inflatable liferaft should be manually released from its cradle by（）.
Mariners not entering the port are（）to keep at least one mile off.