Question 469Navigation General70% to pass
Mean high water is the reference datum used to measure _______________.
AI Explanation
The correct answer is C) heights of topographical features in the United States.
Mean high water is the reference datum used to measure the heights or elevations of topographical features, such as land and coastal features, within the United States. This is because mean high water represents the average highest tide level, which is a common reference point for measuring the elevations of nearby land.
The other answer choices are incorrect because mean high water is not typically used to measure soundings (water depths) in the United States or worldwide, nor is it used specifically for soundings in European waters.
Related Questions
#467 When utilizing a Pacific Coast chart, the reference plane of soundings is _______________.#468 Mean lower low water is the reference plane used for _______________.#470 Mean high water is used _______________.#471 The description "Racon" beside an illustration on a chart would mean a _______________.#472 Chart legends printed in capital letters show that the associated landmark is _______________.