A、Indicates the limits of the navigable channel
B、Indicates a danger area
C、Is used to identify the characteristics of the light
D、Serves no significant purpose
更多“On a chart，the characteristic of the light on a lighthouse is shown as flashing white with a red sector.The red sector（）.”相关的问题
A、Gray lines on the uppermost inset chart B、Red lines on the main body of the chart C、In parenthesis on the lines of equal magnetic variation D、Annual rate of change is not shown
A、Gray lines on the uppermost inset chart B、Red lines on the main body of the chart C、In parenthesis on the lines of equal magnetic variation D、Annual rate of change is not shown
A、a straight line drawn on the chart approximates a great circle B、the chart should not be used outside of the standard parallels C、the course angle is measured at the mid-longitude of the track line D、distance cannot be measured directly from the chart
A、Mercator charts／Loran charts B、Admiralty charts／Routeing charts C、large scale charts／small scale charts D、small scale charts／large scale charts
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
A、found in the center(s) of the compass rose(s) B、indicated by isogonic lines C、found in a note on the chart D、All of the above
A、Top center B、Lower-left corner C、Part of the chart title D、Any clear area around the neat line
A、Ocean Passages for the World B、Symbols and Abbreviations used on Admiralty Charts，Chart 5011 C、Weekly Admiralty Notices to Mariners D、The Mariners Handbook
A、Easily plotted on a Mercator chart B、Negligible increase in distance on east-west courses near the equator C、Does not require constant course changes D、Plots as a straight line on Lambert conformal charts
A、Weekly Admiralty Notices to Mariners B、The Mariners Handbook C、Ocean Passages for the World D、Symbols and Abbreviations used on Admiralty Charts，Chart 5011
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