Hover or tap underlined Spanish terms to see their translation and exam tip.
Nos encontramos en un punto -A- de situación 36º 10'N – 006º 10'W y queremos dirigirnos hacia otro punto -B- situado en 35º 50'N – 006º 00'W ¿Cuánto tiempo tardaremos en realizar este recorrido a velocidad constante de 8 nudos?We are at a point A at 36º 10'N – 006º 10'W and want to go to another point B at 35º 50'N – 006º 00'W. How long will this run take at a constant speed of 8 knots?
Show the answer
Correct answer: a) 2h 42m
Why it is correct
Difference of latitude: 20 miles. Departure: 10′ × cos 36º = 8.1. Distance: √(20² + 8.1²) = 21.6 miles. Time: 21.6 / 8 = 2.7 h, about 2h 42m.
Why the others are not
- b) It comes from using only 5 or 6 miles.
- c) It would imply 24 miles.
- d) It would imply about 17 miles.
How to work it out in the exam
- On the chart, measure the distance with dividers on the latitude scale.
- Time = distance / speed.
Where this question comes from
- Región de Murcia · 2018 · 1ª convocatoria · PER Tipo 1 · question 42 Official paper · Official answer key
- Región de Murcia · 2025 · 2ª convocatoria · PER Tipo 1 · question 44 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.