Hover or tap underlined Spanish terms to see their translation and exam tip.
Situados sobre la línea de la enfilación de los faros Punta Cires - Punta Alcázar, tenemos en ese instante al faro de Punta Carnero por el Norte verdadero y desde esa posición, damos rumbo al puerto de Ceuta (luz verde de la bocana del puerto) con velocidad de 8 nudos. ¿Qué tiempo tardaremos en llegar a Ceuta?:On the leading line of Punta Cires and Punta Alcázar lighthouses with Punta Carnero bearing due North true, you set course for Ceuta port (green entrance light) at 8 knots. How long will it take to reach Ceuta?
Show the answer
Correct answer: a) 49 minutes
Why it is correct
The NE extension of the Punta Alcázar–Punta Cires leading line (047º) intersects the meridian of Punta Carnero (Dv = 000º, L = 005º 25.4′ W) at 35º 57.2′ N. From there to Ceuta green entrance light (35º 53.8′ N, 005º 18.6′ W) is 6.5 miles, which at 8 knots takes (6.5 / 8) × 60 ≈ 49 minutes.
Why the others are not
- b) Does not match the time to cover the 6.5 miles to Ceuta at 8 knots.
- c) Does not match the time to cover the 6.5 miles to Ceuta at 8 knots.
- d) Does not match the time to cover the 6.5 miles to Ceuta at 8 knots.
How to work it out in the exam
- Intersect the Alcázar–Cires alignment with the meridian of Punta Carnero (35º 57.2′ N, 005º 25.4′ W).
- Measure the 6.5 miles to Ceuta entrance and divide by 8 knots: 49 minutes.
Where this question comes from
- Región de Murcia · 2018 · 2ª convocatoria · PER Tipo 1 · question 45 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.