Hover or tap underlined Spanish terms to see their translation and exam tip.
Queremos saber el rumbo verdadero y la distancia que hay entre el extremo del espigón del puerto de Cabo Roche y el faro de Espartel:What are the true course and distance from the breakwater head of the port of Cabo Roche to Cape Spartel lighthouse?
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Correct answer: b) Rv = 161º, dist = 31.9 miles.
Why it is correct
Joining the Cabo Roche breakwater (36º 17.6′ N, 006º 08.4′ W) to Cape Spartel lighthouse (35º 47.5′ N, 005º 55.5′ W) gives ΔLat = 30.1′ S and departure A = 10.4′ E, corresponding to Rv = 161º and distance = 31.9 miles.
Why the others are not
- a) Does not match the course (161º) and distance (31.9 miles) between Cabo Roche and Cape Spartel.
- c) Does not match the course (161º) and distance (31.9 miles) between Cabo Roche and Cape Spartel.
- d) Does not match the course (161º) and distance (31.9 miles) between Cabo Roche and Cape Spartel.
How to work it out in the exam
- Draw the line from Cabo Roche breakwater to Cape Spartel lighthouse.
- Measure the true course on the rose (161º) and the distance on the latitude scale (31.9 miles).
Where this question comes from
- Región de Murcia · 2022 · 1ª convocatoria · PER Tipo 1 · question 45 Official paper · Official answer key
- Región de Murcia · 2026 · 2ª convocatoria · PER Tipo 1 · question 44 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.