Question 1144Navigation General70% 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 _______________.
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.
Related Questions
#1142 The apparent wind is zero when the true wind is _______________.#1143 A wind vane on a moving vessel shows _______________.#1145 The velocity of the apparent wind can be more than the true wind, and come from the same direction, if certain conditions are present. One condition is that the _______________.#1146 Which weather element cannot be measured accurately while on board a moving vessel? #1147 You are steaming west in the South Atlantic in an extratropical cyclonic storm, and the wind is dead ahead. According to the law of Buys Ballot, the center of low pressure lies _______________.