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Situados en posición A: Latitud: 35º50’N / Longitud: 06º10’W, ponemos rumbo verdadero al puerto de Barbate (extremo muelle). ¿Qué rumbo verdadero debemos poner?.From position A at Latitude 35º 50' N / Longitude 06º 10' W, you set a true course for the port of Barbate (pier head). What true course must you steer?
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Correct answer: b) 030º
Why it is correct
From 35º 50.0′ N, 006º 10.0′ W to the Barbate pierhead light (36º 11.3′ N, 005º 55.3′ W), ΔLat = 21.3′ N and ΔLong = 14.7′ E (departure A = 11.9′ E), giving a true course of Rv = 029.2º ≈ 030º.
Why the others are not
- a) Deviates by 5º or more from the true course measured between 35º 50′ N, 006º 10′ W and Barbate.
- c) Deviates by 5º or more from the true course measured between 35º 50′ N, 006º 10′ W and Barbate.
- d) Deviates by 5º or more from the true course measured between 35º 50′ N, 006º 10′ W and Barbate.
How to work it out in the exam
- Plot point A (35º 50′ N, 006º 10′ W) and join it to the Barbate breakwater head.
- Read the true course on the compass rose: Rv = 030º.
Where this question comes from
- Región de Murcia · 2021 · 2ª convocatoria · PER Tipo 1 · question 42 Official paper · Official answer key
- Región de Murcia · 2025 · 1ª convocatoria · PER Tipo 1 · question 45 Official paper · Official answer key
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Pending instructor review. Machine translation, not reviewed.