The soundings on the imperial chart are measured in（）.

Which information is found in the chart title（）.

When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.

Charts showing the coast of Mexico are produced by the United States（）.

Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.

What information is found in the chart title? （）

On chart，bearings to near objects should be used in preference to objects farther off，because（）.

The short-long dashed magenta line around Gardiners Island marks（）.

The numeral in the center of a wind rose circle on a pilot chart indicates the （）.

The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.