A.straight line
B.arc
C.parabola
D.line parallel to the coast
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A.one sidelight and the masthead light are visible
B.the vessels will pass closer than half a mile
C.both vessels sound one prolonged blast
D.both sidelights and masthead light(s) are visible
A.required navigation lights
B.lifesaving equipment standards
C.casualty reporting procedures
D.currents in various locations
A.Tidal Current Tables
B.Tide Tables
C.American Practical Navigator
D.Sailing Directions
A.Admiralty Sailing Directions
B.Admiralty List of Lights
C.Admiralty List of Signals
D.Admiralty Notices to Mariners
A.corrections
B.publications
C.supplements
D.alterations
最新試題
During a period of whiteout，you should expect which of the following（）.
The height of eye correction is smaller than geometrical dip because of （）.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
The Earth has the shape of a(n) （）.
A vessel is entering port A for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do（）.
The distance between any two meridians measured along a parallel of latitude and expressed in miles is the （）.
As these features are not all charted，special caution should be exercised （） vessels navigating in the vicinity.
In Admiralty Sailing Directions，bands is the word used to indicate（）marking．
On a voyage from Capetown to London，the favorable ocean current off the coast of Africa is the （）.
Areas enclosed by a long and short dashed magenta line indicate （）.