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Determine las coordenadas de una embarcación situada a 6 millas del Cabo Espartel y a 5,5 millas de Punta Malabata.Find the coordinates of a vessel located 6 miles from Cape Spartel and 5.5 miles from Punta Malabata:
Show the answer
Correct answer: d) l = 35º 52.0' N; L = 005º 50.6' W
Why it is correct
Drawing a 6-mile range arc from Cape Spartel (35º 47.5′ N, 005º 55.5′ W) and a 5.5-mile arc from Punta Malabata (35º 48.8′ N, 005º 45.0′ W), the two arcs intersect in the Strait at l = 35º 52.0′ N, L = 005º 50.6′ W.
Why the others are not
- a) Does not match the sea intersection of the 6′ range from Spartel and 5.5′ range from Malabata.
- b) Does not match the sea intersection of the 6′ range from Spartel and 5.5′ range from Malabata.
- c) Does not match the sea intersection of the 6′ range from Spartel and 5.5′ range from Malabata.
How to work it out in the exam
- Set dividers to 6 miles on the latitude scale and swing an arc from Cape Spartel.
- Intersect with a 5.5-mile arc from Punta Malabata: 35º 52.0′ N, 005º 50.6′ W.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2021 · Convocatoria de julio · PER Test 2 · question 42 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2021 · Convocatoria de julio · PER Test 4 · question 43 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.