Question 1938Navigation General

The correct answer is B. The reasoning is as follows: 1) You are bound for Baltimore via Cape Henry on a 15 knot ship. 2) The flood at Chesapeake Bay entrance begins at 1800 EST (ZD +5), which means the flood tide starts at 1800 local time. 3) Given the ship's speed of 15 knots, it would take approximately 2 hours to travel from Cape Henry to the Chesapeake Bay entrance. 4) Therefore, the ship would arrive at the Chesapeake Bay entrance around 2000 local time, which coincides with the start of the flood tide, making answer B the correct choice. The other options are incorrect because they do not accurately reflect the timing of the ship's arrival relative to the start of the flood tide.