Question 1856Navigation General

The correct answer is D) low water reference plane. The abbreviation L.W.R.P. on navigation maps refers to the low water reference plane, which is a horizontal plane used as a reference point for measuring water depths. The low water reference plane is typically the lowest water level observed over a long period, and it is used to ensure that navigational charts and maps accurately depict the water depths, helping mariners safely navigate waterways. The other options are incorrect because they do not accurately describe the meaning of the L.W.R.P. abbreviation on navigation maps. Land wall reference point, least water river plane, and low winter runoff point are not standard terms used in navigation or on nautical charts.