Question 461Navigation General70% to pass
On an Army Corps of Engineers navigation map, each mile A.H.P. on the Lower Mississippi River is marked by a _______________.
AI Explanation
The correct answer is D) black dot.
On Army Corps of Engineers navigation maps for the Lower Mississippi River, each mile Above Head of Passes (A.H.P.) is marked by a black dot on the map. This is the standard convention used to denote mileage markers on these navigation charts.
The other answer choices are incorrect because: A) navigation lights are physical markers on the river, not map symbols; B) dashed red lines are not used to mark mileage on these maps; and C) while the maps do show numerical mileage, the mileage is not indicated by a number at each individual mile marker.
Related Questions
#459 How is a navigation light identified on an Army Corps of Engineers navigation map? #460 On the Corps of Engineer's Navigation Maps, the channel is _______________.#462 What is NOT found in the Mississippi River System Light List? #463 The Light List shows a lighted aid to navigation on the right bank. This means that the light can be seen on the port side of a vessel _______________.#464 The Light List shows a lighted aid to navigation on the right bank. This means that the light can be seen on the starboard side of a vessel _______________.