A.plug the vents
B.plug the sounding pipes
C.plug the scuppers
D.close the lids on the vents
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A.fix
B.running fix
C.estimated position
D.dead-reckoning position
A.estimated position
B.dead reckoning position
C.fix
D.None of the above
A.dead-reckoning position
B.running fix
C.estimated position
D.fix
A.fix
B.dead-reckoning position
C.running fix
D.probable position
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
最新試題
After being rescued from the vessel accident，the people agreed that they had much to（）.
The Lists of Meteorological Observation Stations can be found in（）.
Of the following，（）is not likely found in The Mariners Handbook.
An inflatable liferaft should be manually released from its cradle by（）.
Mean high water is the average height of（）.
A sweep oar is an oar that is（）.
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 （）.
Light Lists for coastal waters are（）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.