A.Feet
B.Yards
C.Fathoms
D.Meters
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A.fish trap areas
B.naval exercise areas
C.underwater cables
D.recommended track lines
A.A regulated anchorage
B.Fish trap areas
C.An area closed to the public
D.Underwater cables
A.High water line
B.Low water line
C.Low water spring line
D.Tide level
A.Amphibious training areas
B.Grounds for dredge spoil
C.Fish trap areas
D.Gunnery exercise areas
A.on a regional basis
B.on a national basis
C.shown orderly
D.appeared from A to W
最新試題
A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
The survey information upon which a chart is based is found （）.
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
That the scale of any part of a chart to be larger than the scale of the survey is（）.
What defines a great circle? （）
The soundings on the chart are based on the depth of water available at （）.
The maximum difference between mean time and apparent time is （）.