Deck : Navigation Problems - 786/1708
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| Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 212°T, and the variation is 7°W. If the heading of your vessel at the time of the sighting is 208° per standard magnetic compass, what is the correct deviation? |
| A) 4°E |
| B) 11°E |
| C) 11°W |
| D) 4°W |
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| Comments |
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| Mitchell88 - 2017-07-24 12:54:33 Registered (1) |
You show and answer for this questions on test 351.13 as 11 degrees EAST. I believe your answer is incorrect for the following reason. If the vessel is in line with the range marker lights then according to the chart the vessel is heading at 212 degrees TRUE. With a variation of 7 degrees W, the vessel’s standard compass heading should read (212 – 7) or 205 degrees magnetic. However, according to your question his compass is reading 208 degrees, an error of 3 degrees of deviation from what his compass should read with 0 deviation. I believe the correct answer should be the deviation is 3 degrees E The multiple choice you supplied were: A) 4 degrees E B) 4 degrees W C) 11 degrees E D) 11 degrees W I believe none of your supplied answers are correct. Can you provide an explanation? |