Question 1186Navigation General70% to pass
The best estimate of the wind direction at sea level can be obtained from observing the direction of the _______________.
AI Explanation
The correct answer is B) waves.
The direction of the waves at sea level provides the best estimate of the wind direction. Waves are primarily generated by the wind blowing across the water's surface, and the wave direction closely follows the wind direction. Observing the wave direction is a reliable method for determining the wind direction near the water's surface, which is the most relevant for vessel operations.
The other options are not as reliable for estimating wind direction. Vessel heading can be affected by factors other than just the wind, such as currents. Swells are generated by distant winds and may not accurately reflect the local wind direction. Cloud movement is more indicative of upper-level winds rather than the wind at sea level.
Related Questions
#1184 The "horse latitudes" are regions of _______________.#1185 Wind direction may be determined by observing all of the following EXCEPT _______________.#1187 While taking weather observations, you determine that the wind is blowing from the northeast. You would record the wind direction in the weather log as _______________.#1188 Your ship is proceeding on course 320°T at a speed of 25 knots. The apparent wind is from 30° off the starboard bow, speed 32 knots. What is the relative direction, true direction and speed of the true wind? #1189 Your vessel is on course 180°T speed 22 knots. The apparent wind is from 70° off the port bow, speed 20 knots. The true direction and speed of the wind are _______________.