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A HRB= 1230 tenemos el faro de Punta Europa por la demora verdadera= 290º y tomamos distancia radar a dicho faro= 9 millas. Indique nuestra posición:At HRB = 1230 Punta Europa lighthouse bears 290º true at a radar distance of 9 miles. What is your position?
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Correct answer: d) 36º 03.6' N – 005º 10.2' W
Why it is correct
If Punta Europa lighthouse (36º 06.5′ N, 005º 20.7′ W) bears 290º true, the vessel lies along the reciprocal bearing 110º from the light. Measuring 9 miles along 110º from Punta Europa gives 36º 03.6′ N, 005º 10.2′ W.
Why the others are not
- a) Does not match the point 9 miles along 110º true from Punta Europa.
- b) Does not match the point 9 miles along 110º true from Punta Europa.
- c) Does not match the point 9 miles along 110º true from Punta Europa.
How to work it out in the exam
- Compute the reciprocal bearing from Punta Europa: 290º − 180º = 110º.
- Measure 9 miles from Punta Europa along 110º: 36º 03.6′ N, 005º 10.2′ W.
Where this question comes from
- Región de Murcia · 2020 · 2ª convocatoria · PER Tipo 1 · question 44 Official paper · Official answer key
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Pending instructor review. Machine translation, not reviewed.