Hover or tap underlined Spanish terms to see their translation and exam tip.
Zarpamos del Puerto de Ceuta (luz roja espigón de levante) con velocidad de corredera= 9 nudos. Calcular el tiempo que se tardará en llegar al Puerto de Algeciras (luz extremo espigón):Leaving Ceuta port (red light on the east breakwater) at a log speed of 9 knots, calculate how long it will take to reach Algeciras port (breakwater end light):
Show the answer
Correct answer: a) 1h 48m
Why it is correct
The charted distance between Ceuta harbour entrance (35º 53.8′ N, 005º 18.6′ W) and Algeciras breakwater light (36º 07.5′ N, 005º 25.4′ W) is 16.2 miles. At 9 knots this takes (16.2 / 9) × 60 = 108 minutes = 1h 48m.
Why the others are not
- b) Does not match the 108 minutes (1h 48m) needed to cover 16.2 miles at 9 knots.
- c) Does not match the 108 minutes (1h 48m) needed to cover 16.2 miles at 9 knots.
- d) Does not match the 108 minutes (1h 48m) needed to cover 16.2 miles at 9 knots.
How to work it out in the exam
- Measure the distance between Ceuta and Algeciras breakwaters: 16.2 miles.
- Divide by 9 knots: 16.2 / 9 = 1.8 h = 1h 48m.
Where this question comes from
- Región de Murcia · 2022 · 2ª convocatoria · PER Tipo 1 · question 42 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.