Question 1048Navigation General
70% to passYour vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. Twenty-five percent of the sky is covered with clouds, and the anemometer indicates that the apparent wind is from 062° relative at 13 knots. You are on course 238°T at 22 knots. How should you encode group Nddff?
The correct answer is A) 20220. The group Nddff encodes the cloud cover (N) and the wind direction and speed (ddff). Based on the information provided: - The sky is 25% covered with clouds, which corresponds to a cloud cover code of 2. - The apparent wind is from 062° relative at 13 knots. Converting the relative wind direction to a true wind direction using the course of 238°T and the vessel speed of 22 knots gives a true wind direction of 062°. - The wind speed of 13 knots corresponds to a wind speed code of 20. Therefore, the correct encoding for Nddff is 20220. The other options are incorrect because they do not accurately represent the cloud cover and wind conditions described in the problem.
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