A.estimated position
B.dead reckoning position
C.fix
D.None of the above
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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
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
最新試題
What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to （）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
The daily predictions of the times and heights of high and low water for a selection of Standard Ports are given in（）.
The Lists of Meteorological Observation Stations can be found in（）.
Admiralty EasyTide（）.
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（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.
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（）.
Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
Aboard a survival craft，ether can be used to（）.