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
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
Admiralty EasyTide（）.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
The light vessel is reported（）.
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
For details of these and other lights the larger scale charts and Admiralty Lists should be （）.
A sweep oar is an oar that is（）.
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（）.
After launching，an inflatable raft should be kept dry inside by（）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.