A.plane tangent at one point
B.cylinder tangent at one parallel
C.cone tangent at one parallel
D.series of cones tangent at selected parallels
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A.when at anchor
B.only when making way
C.at any time when underway
D.only when the identifying lights are not being shown
A.aground
B.at anchor
C.not under command
D.being towed
A.average wind conditions
B.tidal currents
C.magnetic variation
D.average limits of field ice
A.B flammable liquid
B.C flammable liquid
C.D combustible liquid
D.E combustible liquid
A.should always be immediately corrected
B.will always cause a vessel to capsize
C.always results from off-center weights
D.All of the above are correct
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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（）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.
What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to （）.
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 Lists of Meteorological Observation Stations can be found in（）.
The Coast Radio Stations are found in（）.
Aboard a survival craft，ether can be used to（）.
An inflatable liferaft is hand-launched by（）.