Question 1144Navigation General

70% to pass

The velocity of the apparent wind can be less than the true wind and from the same direction, if certain conditions are present. One condition is that the _______________.

A true wind is from dead ahead
B ship's speed is more than the true wind velocity
C true wind is from dead astern
D true wind is on the beam
AI Explanation

The correct answer is C) the true wind is from dead astern. When the true wind is from dead astern (directly behind the vessel), the apparent wind velocity can be less than the true wind velocity and from the same direction. This is because the ship's speed adds to the true wind speed when the wind is from astern, resulting in a lower apparent wind velocity. The other options are incorrect because: A) The true wind being from dead ahead would increase the apparent wind velocity, not decrease it. B) The ship's speed being greater than the true wind velocity is not a condition that would result in a lower apparent wind velocity from the same direction. D) The true wind being on the beam (perpendicular to the vessel's heading) would not cause the apparent wind to be less than the true wind velocity.

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