Hover or tap underlined Spanish terms to see their translation and exam tip.
Navegamos al rumbo de aguja = 340º. Al encontrarnos en la oposición de los faros de Punta Almina y Punta Carnero, marcamos el faro de Punta Carnero en demora de aguja 332º. Calcular la corrección total.Steering compass course 340º on the opposition line of Punta Almina and Punta Carnero lighthouses, you take a compass bearing of Punta Carnero = 332º. Calculate the total compass error:
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Correct answer: c) –6º (minus)
Why it is correct
On the Strait of Gibraltar chart, the true bearing along the opposition line from Punta Almina towards Punta Carnero is Dv = 326º. Thus Ct = Dv − Da = 326º − 332º = −6º.
Why the others are not
- a) Does not match the difference between the true bearing of the opposition (326º) and the compass bearing (332º).
- b) Does not match the difference between the true bearing of the opposition (326º) and the compass bearing (332º).
- d) Does not match the difference between the true bearing of the opposition (326º) and the compass bearing (332º).
How to work it out in the exam
- Measure on the chart the true bearing of Punta Carnero on its opposition with Punta Almina: Dv = 326º.
- Apply Ct = Dv − Da = 326º − 332º = −6º.
Where this question comes from
- Junta de Andalucía · 2020 · Convocatoria de e · PER Modelo A · question 43 Official paper · Official answer key
- Junta de Andalucía · 2020 · Convocatoria de e · PER Modelo B · question 43 Official paper · Official answer key
- Junta de Andalucía · 2025 · 3ª convocatoria · PER Modelo A · question 45 Official paper · Official answer key
- Junta de Andalucía · 2025 · 3ª convocatoria · PER Modelo B · question 43 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.