A.High water line
B.Low water line
C.Low water spring line
D.Tide level
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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
A.very rare
B.common
C.often
D.reasonable
A.SW of Cocos Islands
B.oceanic dangers or seamounts
C.undiscovered dangers
D.the continental shelf
A.a small error in bearing or in laying it down on the chart has a greater effect in misplacing the position the longer the line to be drawn
B.all scales are kept updated for vital information by Notices to Mariners
C.the larger the scale of the chart,the greater the detail that can be shown on it
D.the mariner using the medium scale charts for passage along a coast need not transfer on to a large scale for short distances
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The shoreline on charts generally represents the mean().
On a Mercator chart,1 nautical mile is equal to().
What information is NOT found in the chart title? ()
A chart with a scale of 1:80,000 would fall into the category of a().
A chart position enclosed by a square is a(n)().
Charts showing the coast of Mexico are produced by the United States().
On chart,bearings to near objects should be used in preference to objects farther off,because().
The soundings on the chart are based on the depth of water available at ().
The soundings on the imperial chart are measured in().
The numeral in the center of a wind rose circle on a pilot chart indicates the ().