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
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
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（）.
The information on ocean voyage planning with routeing details for powered and sailing vessels is likely found in（）.
Aboard a survival craft，ether can be used to（）.
After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.
On an Atlantic Ocean voyage from New York to Durban，South Africa，you should expect the Agulhas Current to present a strong（）.
The information on（）is not likely found in The Mariners Handbook.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
The Coast Radio Stations are found in（）.
An orange flag showing a black circle and square is a（）.